Question

(b) The electronic configuration of X, Y and Z elements are as follows.
x : 2
Y: 2,6
Z: 2, 8.2
i) Name the element belongs to second period?
ii) Name the element belongs to eighth group of periodic table.
iii) Name the element belongs to second group?
iv) What is the valency of element Y?​

Answer 1

Answer:

hi

Explanation:

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