Anything that influences the valence electrons will affect the chemistry of the element. Which one of the following factors does not affect the valence shell (a) Valence principal quantum number (n) (b) Nuclear charge (Z) (c) Nuclear mass (d) Number of core electrons.

Question

Anything that influences the valence electrons will affect the chemistry of the element. Which one of the following factors does not affect the valence shell (a) Valence principal quantum number (n) (b) Nuclear charge (Z) (c) Nuclear mass (d) Number of core electrons.,

MARKS App · Accepted Answer

Nuclear mass does not affect the valence shell because nucleus consists of protons and neutrons. Where protons i.e. nuclear charge affects the valence shell but neutrons do not. Thus, option (c) is wrong.

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