i. Name the ‘element’ in which all the shells are completely filled with electrons. ii. Name the element which has one electron

Question

Considering the elements of period 3 in the moderm periodic table, answer the following questions:

i. Name the ‘element’ in which all the shells are completely filled with electrons.

ii. Name the element which has one electron in the outermost shell.

iii. State the most electronegative element in this period.

Answer 1

i. The element in which all the shells are completely filled with electrons is argon. (2, 8, 8).

ii. The element which has one electron in the outermost shell is sodium (2, 8, 1).

iii. The most electronegative element in this perod is chlorine (cl).