Question

2) Write the names from the description
a) The period with electrons in the shells K L and M
b) The group with valency zero.
c) The family of nonmetals having valency one
d) The family of metals having valency one
e) The family of metals having valency two
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Answer 1

Answer:

a)3rd period

b)18th group

c)halogen family

d)alkali metal family

e)alkaline earth metal family