Question

Given below is a list of elements along with their atomic numbers :
A(Z=6), B(Z=8), C(Z=10), D(Z=12), E(Z=14), F(Z=16)
Select the element which has :
(a) Two shells both of which are completely filled with electrons.
(b) T5he electronic configuration is 2,8,2.
(c) A total of three shells, with four electrons in its valence shells.
(e) An element that is basic for all organic compounds.

Answer 1

A. ELEMENT C WITH ATOMIC NO. 10 HAS 2 SHELLS (2,8) BOTH OF WHICH ARE COMPLETELY FILLED

B. D IS THE ELEMENT WITH ELECTRONIC CONFIGURATION 2,8,2

C.2,8,4→ELEMENT E

D.ELEMENT D WITH ATOMIC NO. 12 (MAGNESIUM) IS BASIC FOR ALL ORGANIC COMPOUNDS.

#BAL