Social Sciences, asked by lomomib, 11 hours ago

Q.2. Write down the electronic configuration of the first three elements of group 1. How many
valence electrons are present in each one of these three elements?

Answers

Answered by percy13

2

Answer:

1s^1 Hydrogen

1s^2 2^s1 Lithium

1s^2 2s^2 2p^6 3s^1 Sodium

1 valence electron in each

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