Chemistry, asked by bhawana4967, 11 days ago

Hey friends,
Hope you all doing fine.
Please help me in filling this table. (See the attached Screenshot)
Please give answers quickly
No Spam because you deserve points for correct answers only.
Correct and Quick answers will be marked as Brainliest.
Thank you

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Answers

Answered by saikumarmaliredy

0

Answer:

Helium, He, 2,2,2,2 are the 2nd atomic name and number valency

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