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Atomic Number and Mass Number

Anything that...

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)

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B

Nuclear charge

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C

Nuclear mass

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D

Number of core electrons

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Solution

The correct option is C Nuclear mass
Nuclear mass does not affect the valence shell because nucleus consists of protons and neutrons. Protons i.e., nuclear charge affect the valence shell but neutrons do not.

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Similar questions

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.

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.

Q. Anything that influences the valence electrons will affect the chemistry of the element. Nuclear mass effects chemistry of valence electrons.

Q. Consider the following statements and arrange in the order of true/false as given in the codes.

S_{1}

: In the modern periodic table each block contains a number of columns equal to the number of electrons that can occupy that sub-shell.

S_{2}

: the greatest increase in ionization enthalpy is experienced on the removal of the electron from the core noble gas configuration.

S_{3}

: The size of the isoelectronic species is affected by electron-electron interaction in the outer orbitals.

S_{4}

: Anything that influences the valence electrons will affect the chemistry of the element and the valence shell is not affected by nuclear mass.

Q. The size of the isoelectronic species

C l^{-}

A r

C a^{2 +}

is affected by:

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