Question

Ionization energy 1 ionization energy to ionization energy 3 of an element are 450, 700, 1600kilo joule per mole calculate no. Of valonce electron

Answer 1

Answer:2(two)

Explanation:

From i.e.1 to I.E.2 ---LESS THAN DOUBLE ENERGY HAS INCREASED

BUT IN I.E.2AND I.E.3 MORE THAN TWICE ENERGY HAS INCREASED..

SO THE ELEMENT MUST HAVE TWO ELECTRONS IN OUTER MOST ORBIT

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