In which pair does the first element have a h | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) The effective nuclear charge $(Z_{eff})$ generally increases across a period from left to right due to the addition of electrons in the same shell

Vedclass · Accepted Answer

$F, O$

Vedclass · Answer

(D) The effective nuclear charge $(Z_{eff})$ generally increases across a period from left to right due to the addition of electrons in the same shell while the nuclear charge increases.For option $A$: $Z_{eff}$ of $Be$ $(1.95)$ For option $B$: $Z_{eff}$ of $C$ $(3.25)$ For option $C$: $Z_{eff}$ of $Na$ $(2.20)$ > $Z_{eff}$ of $K$ ($2.20$ is not correct,$Na$ is $2.20$ and $K$ is $2.20$ approximately,but $Na$ is in a higher group period context,actually $Z_{eff}$ decreases down the group).For option $D$: $Z_{eff}$ of $F$ $(5.20)$ > $Z_{eff}$ of $O$ $(4.55)$.Therefore,in the pair $(F, O)$,the first element $(F)$ has a higher $Z_{eff}$ than the second element $(O)$.

In which pair does the first element have a higher $Z_{eff}$ than the second atom?

Similar Questions

The bromine atom possesses $35$ electrons. It contains $6$ electrons in $2p$ orbital,$6$ electrons in $3p$ orbital and $5$ electrons in $4p$ orbital. Which of these electrons experiences the lowest effective nuclear charge?

How does the orbital energy change as the nuclear charge increases from $Ne$ to $Ca$?

Which of the following statements is most appropriate for the effective nuclear charge? On what does it depend?

Among the following pairs of orbitals,which orbital will experience the larger effective nuclear charge?
$(i)$ $2s$ and $3s$
$(ii)$ $4d$ and $4f$
$(iii)$ $3d$ and $3p$

Which of the following statements is incorrect?

Vedclass Test Series

Exam Paper Generator

Online Exam Module