Question

3.
Read the following and answer any FOUR questions from 18 (i) to 18 (v)
The Valency of an element is determined by the number of valence electrons present in
the outermost shell of its atom and Atomic size refers to the radius of an atom. The
atomic size is the distance between the centre of the nucleus and the outermost shell of
an isolated atom.
What is the valency of magnesium with atomic number 12 and sulphur with atomic
number 167
a.
2 and 2
b.
2 and 6
C. 2 and 4
d. 6 and 2​

Answer 1

Answer:

a. 2 and 2

Explanation:

valency of magnesium (mg) =2

valency of sulphur (s) = 2

pls mark me as brainliest