Question

Potassium nitrate molecular formula by criss cross method

Answer 1

KNO3

Explanation:

potassium(K) has atomic no. 19 and valency +1 (positive 1) this is because in the last shell N it has 1 electron which it needs to donate or lose to become a stable atom....datz why itz +1......nitrate(NO3) has valency -1 .......wen they form a compound positive energy attracts negative energy.....n both the valency gets cut iff or cancelled n the compound form is KNO3 (potassium nitrate):-

K NO3

+1 -1

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KNO3