Chemistry, asked by nikammanisha370, 9 months ago

write name and e. c. of elements of first period in the modern period table . Indentity which of them has the stable complete electronic configuration.

Answers

Answered by thatipallysudarshan2

1

Answer:

first period contain 2elements

Explanation:

hydrogen and helium

1.hydrogen=1s1

2.helium =1s2

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