The atom of an element has electronic configuration \( 2,8,1 \). Which of the following elements... VIDEO
The atom of an element has electronic configuration \( 2,8,1 \). Which of the following elements is similar with it in chemical reactivity?
a. \( \mathrm{K} \)
b. \( \mathrm{Cl} \)
c. Al
d. \( \mathrm{Ar} \)
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