Which of the following classifications is not correct? a. Noble gases: 8 valence electrons b....
Question:
Which of the following classifications is not correct?
a. Noble gases: 8 valence electrons
b. Halogens: 6 valence electrons
c. Transition metals: number of valence electrons varies
d. Alkali rare earth metals: 2 valence electrons
Valence Electrons:
The electrons are visualized as orbiting around the nucleus of the atom in energy levels called orbitals. Electrons fill up energy levels successively outwards from the nucleus: for example, the innermost energy level can house only two electrons, while the next level can take upto 8 electrons. The valence electrons are those found in the outermost energy level.
Answer and Explanation: 1
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View this answerThe periodic table is an arrangement of elements based on how many energy levels are occupied, and how many electrons are in the outermost energy...
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Valence Electrons and Energy Levels of Atoms of Elements
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Chapter 3 / Lesson 3
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Learn about valence electrons and how to find the number of valence electrons on the periodic table. Discover the role of a valence electron in an atom.
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