GENERAL KNOWLEDGE

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GK

CHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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.
A
1
B
2
C
15
D
16
Explanation: 

Detailed explanation-1: -They have six elements which are Oxygen, Sulfur, Selenium, Tellurium, Polonium, and Livermorium .

Detailed explanation-2: -An element X which has 6 electrons in its outermost shell, require 2 electrons to complete its octet for attaining noble gas configuration. X is an essential element for the survival of all living beings. What is X? The element X is oxygen.

Detailed explanation-3: -The oxygen family, also called the chalcogens, consists of the elements found in Group 16 of the periodic table and is considered among the main group elements. It consists of the elements oxygen, sulfur, selenium, tellurium and polonium.

Detailed explanation-4: -The group 16 elements of the modern periodic table consist of 5 elements oxygen, sulphur, selenium, tellurium and polonium. The elements in this group are also known as the chalcogens or the ore-forming elements because many elements can be extracted from sulphide or oxide ores.

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