Electronic configurations of four elements A, | vedclass

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(D) The electronic configurations are:$A$: $1s^2 2s^2 2p^6 3s^1$ (Sodium,$Na$)$B$: $1s^2 2s^2 2p^6 3s^2 3p^1$ (Aluminium,$Al$)$C$: $1s^2 2s^2 2p^6 3s^

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$D > C > B > A$

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(D) The electronic configurations are:$A$: $1s^2 2s^2 2p^6 3s^1$ (Sodium,$Na$)$B$: $1s^2 2s^2 2p^6 3s^2 3p^1$ (Aluminium,$Al$)$C$: $1s^2 2s^2 2p^6 3s^2$ (Magnesium,$Mg$)$D$: $1s^2 2s^2 2p^6 3s^2 3p^2$ (Silicon,$Si$)Ionization enthalpy generally increases across a period from left to right.The elements belong to the $3^{rd}$ period in the order $Na However,$Mg$ $(3s^2)$ has a fully filled orbital,making it more stable than $Al$ $(3s^2 3p^1)$. Thus,$IE_1$ of $Mg > Al$.The order is $Na Therefore,the correct order of first ionization enthalpy is $D > C > B > A$.

List-$I$ (Electronic configuration of neutral atom where $n=2$)	List-$II$ ($1^{st}$ Ionization Energy in $\text{kJ mol}^{-1}$)
$A. ns^2$	$I. 2080$
$B. ns^2np^1$	$II. 899$
$C. ns^2np^3$	$III. 800$
$D. ns^2np^6$	$IV. 1402$

Electronic configurations of four elements $A$,$B$,$C$,$D$ are given below:
$A$) $1s^2 2s^2 2p^6 3s^1$
$B$) $1s^2 2s^2 2p^6 3s^2 3p^1$
$C$) $1s^2 2s^2 2p^6 3s^2$
$D$) $1s^2 2s^2 2p^6 3s^2 3p^2$
The correct order of first ionization enthalpy of these elements is:

Similar Questions

The atomic numbers of elements $X, Y$,and $Z$ are $19, 37$,and $55$ respectively. Which of the following statements is correct?

Which of the following presents the correct order of second ionization enthalpies of $C$,$N$,$O$ and $F$?

Match List-$I$ with List-$II$:
List-$I$ (Electronic configuration of neutral atom where $n=2$) List-$II$ ($1^{st}$ Ionization Energy in $\text{kJ mol}^{-1}$)
$A. ns^2$ $I. 2080$
$B. ns^2np^1$ $II. 899$
$C. ns^2np^3$ $III. 800$
$D. ns^2np^6$ $IV. 1402$

Which particle may be removed from a stable neutral atom with the least energy change?

For which of the following reactions is the $\Delta H^o$ value equal to the first ionization energy of $Ca$?

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Electronic configurations of four elements $A$,$B$,$C$,$D$ are given below:$A$) $1s^2 2s^2 2p^6 3s^1$$B$) $1s^2 2s^2 2p^6 3s^2 3p^1$$C$) $1s^2 2s^2 2p^6 3s^2$$D$) $1s^2 2s^2 2p^6 3s^2 3p^2$The correct order of first ionization enthalpy of these elements is: