Question

(a) with reference to the first 3 periods
of the modern periodic table, Answer the
questions given below
(i)wite the
formula
the
of sulphate of
element with atomic no. 13.
(ii) consider the following elements
Ca, o, Ar, s, Re and
He,
Which
of
the above elements would you
expect to be
(a)In group IlA of the periodic table?
b) in group VI A of the periodic table ?
(iii) How many electoons
are present in the
valence Shell of the element with atomic no 18?​

Answer 1

Answer:

yed

Explanation:

i hope answer given help you and mark in brain list

Answer 2

Explanation:

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