Chemistry, asked by mhdirfan9846, 2 days ago

X - 3S2 Y - 3S2 3P5 a) Which element has valency 1

please answer it fast

Answers

Answered by rsubha2411

0

Answer:

Element Atomic Number Valency

Hydrogen 1 1

Helium 2 0

lithium 3 1

Beryllium. 4 2

Explanation:

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Answered by mangeshholambe20

0

Answer:

hydrogen, helium, lithium, beryllium

Explanation:

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