Question

Which ion would you
expect to have smaller size and why Be++ or Li
​

Answer 1

Answer:

Be++ is smaller than Li because Be++has 2 electron and Li has 3electron

Answer 2

Answer:

Both Na+ and Mg++have 10 electrons surrounding them. But sodium has 11 protons while magnesium has 12 protons. So, Mg generates a large attraction between the nucleus and electrons which causes it to be smaller ion. Hence, Na+has larger size.

Explanation:

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