Question

Lupuy
18.
a.
C.
Write the names from the description.
The period with electrons in the
shellsK, L and M.
b. The group with valency zero.
The family of nonmetals having
valency one.
d. The family of metals having
valency one.
e.
The family of metals having
valency two.
and​

Answer 1

a. K, L and M shell can accommodate a maximum of 2, 8 and 18 electrons, respectively.

b. The group with valency zero is known as noble group. 

c. The family of nonmetals having valency one is called the halogen family. Group 17 is called the halogen family.

d. The family of Metal having one valence electrons are known as Alkali metals, group 1st

e. The metals called alkaline earth metals, have valency 2. They are group 2 elements of the periodic table.

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