Question

class 9 chemistry
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Answer 1

Answer:

very very easy

Explanation:

class 9 chemistry is very difficult but very easy .

those students who can't like chemistry .

Answer 2

Answer:

Eectronic Configuration of ion:-

2,8

Electronic Configuration of atom:-

2,5

Explanation:

The atom mentioned here is "Nitrogen". As N2 has 5 electrons in its valence shell it will gain 3 more electrons to gain the stable electronic configuration of its nearest noble gas,i.e.,Neon,.

By acquiring thus it gains 3 more elctrons and its electronic coniguration becomes 2,8, which is of it's ion.