Question

Write the expected electronic configuration for each of the following atom – Cl, As, W, Sr, Pb, and Cf.

Short answer

answer:

Step-by-step solution

Electronic configuration of Atoms:

The knowledge about the distribution of electrons in various energy shell, sub-shells and orbital in an atom in the ground state is known as Electronic Configuration.

Step 2:

$\mathrm{C}1\left(17\right)=1{\mathrm{s}}^2,2{\mathrm{s}}^2,2{\mathrm{p}}^6,3{\mathrm{s}}^2,3{\mathrm{p}}^5$

$\mathrm{As}\left(33\right)=1{\mathrm{s}}^2,2{\mathrm{s}}^2,2{\mathrm{p}}^6,3{\mathrm{s}}^2,3{\mathrm{p}}^6,3{\mathrm{d}}^{10},4{\mathrm{s}}^2,4{\mathrm{p}}^3$

$\mathrm{W}\left(74\right)=1{\mathrm{s}}^2,2{\mathrm{s}}^2,2{\mathrm{p}}^6,3{\mathrm{s}}^2,3{\mathrm{p}}^6,3{\mathrm{d}}^{10},4{\mathrm{s}}^2,4{\mathrm{p}}^6,4{\mathrm{d}}^{10},4{\mathrm{f}}^{14},5{\mathrm{s}}^2,5{\mathrm{p}}^6,5{\mathrm{d}}^4,6{\mathrm{s}}^2$

$\mathrm{Sr}\left(38\right)=1{\mathrm{s}}^2,2{\mathrm{s}}^2,2{\mathrm{p}}^6,3{\mathrm{s}}^2,3{\mathrm{p}}^6,3{\mathrm{d}}^{10},4{\mathrm{s}}^2,4{\mathrm{p}}^6,5{\mathrm{s}}^2$

$\mathrm{Pb}\left(82\right)=1{\mathrm{s}}^2,2{\mathrm{s}}^2,2{\mathrm{p}}^6,3{\mathrm{s}}^2,3{\mathrm{p}}^6,3{\mathrm{d}}^{10},4{\mathrm{s}}^2,4{\mathrm{p}}^6,4{\mathrm{d}}^{10},4{\mathrm{f}}^{14},5{\mathrm{s}}^2,5{\mathrm{p}}^6,5{\mathrm{d}}^{1}0,5{\mathrm{f}}^0,6{\mathrm{s}}^2,6{\mathrm{p}}^2$

$\mathrm{Cf}\left(98\right)=1{\mathrm{s}}^2,2{\mathrm{s}}^2,2{\mathrm{p}}^6,3{\mathrm{s}}^2,3{\mathrm{p}}^6,3{\mathrm{d}}^{10},4{\mathrm{s}}^2,4{\mathrm{p}}^6,4{\mathrm{d}}^{10},4{\mathrm{f}}^{14},5{\mathrm{s}}^2,5{\mathrm{p}}^6,5{\mathrm{d}}^{10},5{\mathrm{f}}^{10},6{\mathrm{s}}^2,6{\mathrm{p}}^6$