The diameter of a neutral helium atom is about 146 pm. Suppose you could line up helium atoms...
Question:
The diameter of a neutral helium atom is about 146 pm. Suppose you could line up helium atoms side by side in contact with one another. Approximately how many atoms would it take to make the distance 1 cm from end to end? Round to the nearest whole number.
Distance Between Atoms:
Atoms do not touch each other, even though they come very close to each other. That's because the repulsion between them keeps a distance between them. However, the attraction between atoms keeps them bonded up with each other. The distance at which repulsion is minimum and attraction is maximum is the distance that achieves stability.
Answer and Explanation: 1
Become a Study.com member to unlock this answer! Create your account
View this answerWe know the desired length (l) and the diameter (d) of a helium atom, so we use this information to calculate the number of atoms needed to make that...
See full answer below.
Ask a question
Our experts can answer your tough homework and study questions.
Ask a question Ask a questionSearch Answers
Learn more about this topic:
from
Chapter 2 / Lesson 1Explore atoms. Learn the definition of an atom and understand its structure with diagrams and explanations. See atom examples and find the elements they form.
Related to this Question
- Assume the diameter of a neutral helium atom is 1.40 x 102 pm. Suppose that we could line up helium atoms side by side in contact with one another. How many atoms would it take to make the distance 7.
- Assume the diameter of a neutral atom is 1.40 x 10^2 pm. Suppose that we could line up helium atoms side by side in contact with one another. How many atoms would it take to make the distance 6.20 cm from end to end?
- The diameter of a helium atom is about 1 x 10^2 pm. Suppose that we could line up helium atoms side by side in contact with one another. Approximately how many atoms would it take to make the distance from one end 1 cm?
- The diameter of a neutral helium atom is about 1 * 10^2 pm. Suppose that we could line up helium atoms side by side in contact with one another. Approximately how many atoms would it take to make the
- Assume the diameter of a neutral helium atom is 1.40 times 10^2 pm. Suppose that we could line up helium atoms side by side in contact with one another. How many atoms would it take to make the distan
- The diameter of a neutral neon atom is about 1.4 times 10^2 pm. Suppose that we could line up neon atoms side by side in contact with one another. Approximately how many neon atoms would it take to ma
- An atom of rhodium (Rh) has a diameter of about 2.7 x 10-8 cm. How many Rb atoms would have to be placed side by side to span a distance of 5.5 mum?
- The radius of a lead atom is 175 pm. How many lead atoms would have to be laid side by side to span a distance of 4.20 mm?
- The radius of a chromium atom is 125 pm. How many chromium atoms would have to be laid side by side to span a distance of 4.14 mm?
- The radius of a chromium atom is 125 pm. How many chromium atoms would have to be laid side by side to span a distance of 4.42 mm?
- The radius of a gold atom is 144 pm. How many gold atoms would have to be laid side by side to span a distance of 4.40 mm?
- The radius of a gold atom is 144 pm. How many gold atoms would have to be laid side by side to span a distance of 1.23 mm?
- An atom of aluminum has a diameter of about 1.2 x 10-8 cm. How many aluminum atoms would have to be placed side by side to span a distance of 6.0 um?
- The radius of a gold atom is 144 pm. How many gold atoms would have to be laid side by side to span a distance of 4.81 mm?
- The radius of a niobium atom is 131 pm. How many niobium atoms would have to be laid side by side to span a distance of 4.53 mm?
- The radius of a niobium atom is 131 pm. How many niobium atoms would have to be laid side by side to span a distance of 3.20 mm?
- An atom of germanium (Ge) has a diameter of about 1.3 times 10^{-8} cm. (a) What is the radius of a germanium atom in angstroms? What Is the radius of a germanium atom in meters (m)? (b) How many Ge atoms would have to be placed side by side to span a dis
- The radius of a nickel atom is 125 pm. How many nickel atoms would have to be laid side by side to span a distance of 4.88 mm?
- The radius of a potassium atom is 231 pm. How many potassium atoms would have to be laid side by side to span a distance of 3.39 mm?
- A copper atom has a radius of 135 pm. If you place copper atoms side by side, how many atoms would it take for the lines of an atom to be 1.00 mm across?
- The diameter of a chlorine atom is 200. pm. How many chlorine atoms are required to line up end to end to stretch a distance of 1.0 mm?
- The radius of a palladium atom is 137 pm. How many palladium atoms would have to be laid side by side to span a distance of 4.28 mm?
- How many atoms of antimony must be lined up to make a line that is 1 inch long? Use the atomic radius.
- The radius of a aluminum atom is 143 pm. How many aluminum atoms would have to be laid side by side to span a distance of 4.90 mm?
- The radius of a barium atom is 217 pm. How many barium atoms would have to be laid side by side to span a distance of 4.33 mm?
- There are 2.619\times10^{22} atoms in 1.000 g of sodium. Assume that sodium atoms are spheres of radius 1.86 angstroms and that they are lined up side by side. How many miles in length is the line of sodium atoms?
- The radius of a vanadium atom is 130 pm. How many vanadium atoms would have to be laid side by side to span a distance of 4.61 mm?
- How many atoms having radius 6 * 10^{-12} m are required to form a line 36 mm long?
- A chromium atom has a diameter of 2.50E-10 m. Suppose the atoms in 1.83 mol of chromium atoms are arranged just touching their neighbors in a single straight line. Determine the length of the line.
- The radius of a strontium atom is 215 pm. How many strontium atoms would have to be laid side by side to span a distance of 2.66 mm?
- The radius of a strontium atom is 215 pm. How many strontium atoms would have to be laid side by side to span a distance of 4.47 mm?
- How many electrons would it take to equal the mass of a helium nucleus?
- If the diameter of a sodium atom is 3.14. * 10^-8 cm, how many sodium atoms would fit along a line exactly 4 in long? Part A Express your answer to three significant figures.
- Helium is the lightest noble gas and the second most abundant element (after hydrogen) in the universe. a. The radius of a helium atom is 3.1 times 10^{-11} m; the radius of its nucleus is 2.5 times 10^{-15} m. What fraction of the spherical atomic volume
- How many Rh atoms would have to be placed side by side to span a distance of 6.5 \mu m ?
- How many Rh atoms would have to be placed side by side to span a distance of 7.0 m?
- How many Rh atoms would have to be placed side by side to span a distance of 9.5 m?
- How many Rh atoms would have to be placed side by side to span a distance of 9.0 \mu m?
- How many RH atoms would have to be placed side by side to span a distance of 1.5 m?
- If an electron in a hydrogen atom is in the 3s orbital, state how many radial and angular nodes exist. What is the most probable distance for this electron?
- What is the atomic radius in picometers of an argon atom if solid argon has a density of 1.623 g/cm3 and crystallizes at low temperature in a face-centered cubic unit cell?
- In which of the following atoms is the 3s orbital closest to the nucleus? a. Br b. Cl c. At d. I e. The 3s orbitals are the same distance from the nucleus in all of these atoms.
- How many Rh atoms would have to be placed side by side to span a distance of 3.5 mum?
- How many Rh atoms would have to be placed side by side to span a distance of 8.5 mum?
- If the electron in a hydrogen atom is in the 2s orbital, what is its most probable distance from the nucleus?
- If 5.0\times 10^{10} barium (Ba) atoms could be arranged side by side, they would form a straight line measuring 22 m. What is the diameter of a Ba atom in pm?
- What is the radius of the copper atom? Assume that copper atoms are spheres. Then note that the spheres on any face of a unit cell touch along the diagonal.
- How many atoms are there in a body-centered cubic unit cell of an atomic crystal in which all atoms are at lattice points?
- A) Find the number of atoms per square centimeter in silicon in the (100), (110), and (111) planes. B) How many valence electrons are in a tin atom? How many valence electrons are in a Ga atom and an
- a) For a hard-sphere FCC metal like aluminum, what is the closest spacing of the atoms? b) Similarly, what is the closest spacing of the atoms in BCC metal like iron?
- Sodium metal crystallizes as a body-centered cubic lattice with the cell edge 4.29 angstrom. What is the radius of the sodium atom?
- Consider a simple cubic crystal of identical atoms of diameter 0.32 nm (nanometers). What is the diameter, in nm, of an interstitial impurity that would fit exactly between the host atoms, achieving a coordination number of 8? In other words, the impurity
- Consider a large number of hydrogen atoms with electrons randomly distributed in the n = 1, 2, 3, and 4 orbits. (Assume that the Bohr constant and radius are 2.179 x 10^(-18) J and 5.292 x 10^(-11) m, respectively.)
- What will be the radius of the 4th orbital of an atom if the Bohrs radius is 0.529A?
- Copper crystallizes in a face-centered structure. The edge of the unit cell is 361 pm. What is the radius of the copper atom?
- In terms of the atomic radius, R, determine the distance between the centers of adjacent atoms for the BCC crystal structure along the [110] direction.
- If the radius of the potassium (K) atom is 2.27 times 10^{-7} mm, what is the radius in um?
- If the radius of a potassium atom is 2.27 \times 10^{-7} mm, what is the radius in m?
- 1. How many valence electrons are there per cm^{3} of germanium.? 2. Draw a unit cell of germanium crystal showing positions of atoms and their bonding.
- What is the average distance from an orbital electron to the nucleus for a 2s and 2p electron in a) H and b) Li^2+.
- Quantum dots are a hot topic in chemistry currently. A spherical quantum dot was made of solid germanium (density = 5.325 g/cm^3) with a diameter of 4 nm. How many atoms are in the dot?
- Cesium atoms are the largest naturally occurring atoms. The radius of a cesium atom is 2.65 Angstroms. How many cesium atoms would have to be laid side by side to give a row of cesium atoms 1.00 in. long? Assume that the atoms are spherical.
- How many atoms are there in a simple cubic unit cell of an atomic crystal in which all atoms are at lattice points?
- How do you use the atomic radius of an element to find out how many elements must be lined up to make a 1-inch line? Explain using mercury as an example, which has an atomic radius of 155 pm.
- The radius for the first excited state (n = 2) orbit is 2.12 in. Find the Bohr radius for the hydrogen atom (n = 1). a) 0.700 b) 1.530 c) 0.530 d) 2.271
- Does helium have an ionic radius?
- The characteristic way in which atoms of an element react is most related to the: a. number of electrons in the outermost shell. b. number of electrons in the innermost shell. c. number of neutrons in the nucleus. d. size of the nucleus.
- How many unpaired electrons are there in a manganese atom? a. 1 b. 2 c. 4 d. 5 e. 0 An atom of which of the following elements has the smallest atomic radius? a. Cl b. Rb c. Ca d. Si e. As
- Hypothetical elements X and Y form a molecule XY2, in which both Y atoms are bonded to atom X (and not to one another). The X-X distance in the elemental form of X is 2.04 Angstrom, and the Y-Y distance in elemental Y is 1.68 Aangstrom. What would you pre
- For the 1s orbital of the hydrogen atom, calculate the probability of finding an electron within 2a_2 (twice the Bohr radius) of the nucleus.
- For a hydrogen atom in its ground state, calculate the relative probability of finding the electron in a shell between two concentric spheres, one with radius 9.95 pm and the other with radius 10.05 pm.
- How do the shape and average distance of the electrons from the nucleus compare for a 2p orbital of nitrogen and a 3p orbital of sulfur?
- For a hydrogen atom in its ground state, calculate the relative probability of finding the electron in a shell between two concentric spheres, one with radius 52.85 pm and one with radius 52.95 pm.
- A neutral atom has an atomic number of 12 and an atomic mass of 25. How many electrons are in it?
- What is the probability of finding the electron in a volume of 6.5 pm^3 centered on the nucleus in: (a) a hydrogen atom? (b) a He^+ ion?
- Atoms in which the number of electrons does not equal the number of protons are known as?
- Find the number of atoms in a cubic based unit cell having one atom on each corner and two atoms on each diagonal. a) 9 b) 13 c) 5 d) 18
- Which contains the greatest number of atoms? A. 1.0 g of helium B. 1.0 g of neon C. 1.0 g of H_2 D. They all contain the same number of atoms.
- How many protons and electrons are there in a neutral chromium atom?
- A monatomic ion has a charge of +1. The nucleus of the ion has a mass number of 85. The number of neutrons in the nucleus is 1.30 times that of the number of protons. a. How many electrons are in the ion? b. What is the name of the element?
- A monatomic ion has a charge of +4. The nucleus of the ion has a mass number of 235. The number of neutrons in the nucleus is 1.55 times that of the number of protons. a. How many electrons are in the ion? b. What is the name of the element?
- How many protons are there in an atom of 23 Na?
- Chromium metal crystallizes as body-centered lattice. If the atomic radius of Cr is 1.25 angstroms, what is
- 1) Calculate the magnitude of the orbital angular momentum for a hydrogen atom in the following states. (a) 3s J s (b) 2p J s 2) For a neutral atom of element 40, what would be the probable groun
- Using the coordinate system used for the electron in Hydrogen, identify the six coordinates that are used to determine r12 for the electrons in Helium.
- How many protons and electrons are present in an Argon atom?
- A neutral atom has the following electron configuration. 1s22s22p63s2 a. What is the chemical symbol for the atom? b. How many electrons does the atom have? c. How many 3d electrons are in the atom?
- For SO2, how many electrons are there on either terminal atom that are not shared with the central atom? How many electrons are there on the central atom that are not shared with the terminal atoms? How many electrons are shared with the central and termi
- An atom's core contains 16 neutrons and possesses a total electrical charge. 1. What is the atomic number of the atom? 2. What is the number of nucleons(mass)? 3. How many electrons are in the electronic mantle?
- How many electrons are in the nucleus of an atom with an atomic number of 20?
- A neutral atom has the following electron configuration: He 2s22p6 a. What is the chemical symbol for the atom? b. How many electrons does the atom have? c. How many 2p electrons are in the atom?
- All of the atoms listed below have the electrons in a 3 s orbital. In which atom are the electrons in the 3 s orbital furthest from the nucleus and explain why? a. Br b. Cl c. At d. I
- Consider and electron within the 1s orbital of a hydrogen atom. The normalized probability of finding the electron within a sphere of radius R centered at the nucleus is given by N o r m a l i z e d P r o b a b i l i t y = 1 a 2 0 [ a 2 0 e 2 R a 0
- At what distance from the nucleus does the radial node of the 2s orbital of B4+ occur?
- Very small crystals composed of 1,000 to 100,000 atoms, called quantum dots, are being investigated for use in electronic devices. The density of germanium is 5.325 g/cm3. If you made a quantum dot of germanium with a diameter of 9 nm, how many Ge atoms w
- Metallic niobium crystallizes in a body-centered cubic lattice, with one Nb atom for each point in the crystal lattice How many atoms are there per unit cell? If the edge length of the unit cell is fo
- Argon crystallizes in the face-centered cubic cell arrangement at 40 K. How many Argon atoms are in a unit cell?
- Calculate the number of atoms in a cube-based unit cell having one atom on each corner and two atoms on each body diagonal.
- A neutral atom loses an electron and now holds a net charge of +1 with 26 remaining electrons and has a mass number of 58. How many neutrons does this charged atom contain? (Express your answer as an integer.)