Question

Element X is a solid that is brittle, lacks luster, and has six valence electrons. In which group on the Periodic Table would element X be found?(1) 1 (3) 15
(2) 2 (4) 16

Answer 1

It is group 16. That is, Chalcogens. They call it the oxygen family.

Answer 2

Answer;

(4) Group 16

Explanation;

• Group 16 elements of the periodic table is called the oxygen family. They are also called Chalcogens since they are found as compounds or ores in the earth's crust.
• These elements like oxygen, they have six electrons in the outermost energy level, thus they have a valency of two as they require 2 electrons to attain a stable configuration. Examples of elements in this groups includes, oxygen, polonium, sulfur, and selenium.
• Therefore, due to the fact that element X has six outermost electrons then it belongs to group 16.