In what way are the electron configurations of H, Li, Na, K, Rb, and Cs similar? More than one...

Question:

In what way are the electron configurations of H, Li, Na, K, Rb, and Cs similar? More than one answer is possible.

a. They belong to a mathematical progression in atomic number such that Z + 8 describes the next atomic number.

b. They all have an unpaired electron in an s orbital.

c. They all have an unpaired electron with a magnetic quantum number, m{eq}_l {/eq} = 0.

d. They all have an unpaired electron with an angular momentum quantum number, l = 0.

e. They all have an unpaired electron with a spin magnetic quantum number, m{eq}_s {/eq} = +1/2.

f. They an have an unpaired electron with a spin magnetic quantum number, m{eq}_s {/eq} = - 1/2.

Quantum Numbers & Electronic Configuration:

The set of four quantum numbers of a particular electron in an atom is unique. The principal quantum number n can have the values 1, 2, 3 and so on.

The Azimuthal quantum number l can have the values between 0 and (n - 1).

The magnetic angular momentum quantum number m{eq}_{l} {/eq} can have the values between -l and +l.

The magnetic spin quantum number can have the values -1/2 or +1/2.

Answer and Explanation: 1

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  • Statement (a) is false because there is a gap of 18 or 36 elements between some of the elements of this group of elements.
  • Statement (b) is true as...

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Electron Configurations in the s, p & d Orbitals

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Chapter 47 / Lesson 8
13K

What are electron configuration orbitals? Learn about the s, p, and d orbital electrons, and use the periodic table to understand orbitals and placement.


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