What metalloid that has three valence electrons?

The general electronic configuration of the element present in the 13th group of the periodic table is . Therefore, the number of valence electrons of the group 13this 3. Also, the metalloid element which is present in group 13th is boron. Hence the metalloid which has 3 valance electrons is boron.

Explanation:

the correct answer is option d

explanation:

i was wrong its d because they dont use cm when calculating square roots