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.

  • A
    Valence principal quantum number $(n)$
  • B
    Nuclear charge $(Z)$
  • C
    Nuclear mass
  • D
    Number of core electrons.

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Similar Questions

Consider the following statements:
$(I)$ Ionic mobility of hydrated $Li^+$ is greater than that of hydrated $Na^+$.
$(II)$ $IE_1$ of $P$ atom is higher than that of $S$ atom,while $IE_2$ of $S$ atom is higher than that of $P$ atom.
$(III)$ Lithium is a strong reducing agent in aqueous medium.
Which of the above statements is/are correct?

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Given below are two statements:
Statement $I$: The second ionisation enthalpy of $Na$ is larger than the corresponding ionisation enthalpy of $Mg$.
Statement $II$: The ionic radius of $O^{2-}$ is larger than that of $F^{-}$.
In the light of the above statements,choose the correct answer from the options given below.

Which of the following orders is incorrect?

Which of the following orders is $NOT$ correct with respect to the mentioned properties?

Which of these does not reflect the periodicity of the elements?

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