Science, asked by Anonymous, 7 months ago

please tell 15 question

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Answered by raazu12345

1

Answer:

please marke as a brainlist

Answered by varaprasad611

0

Answer:

1st one I can't do dot structure but I can tell electronic configuration 2,8,1

2nd one....Na gas valence 1 and oxygen 2 ..by crossing the valencies The compound Na20 formed

3rd one 4th one don't know sry

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