dat achiever question 49 from test3

[issa]

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can someone explain the answer to question 49 from test3 in dat achiever?

 

[smec]

can someone explain the answer to question 49 from test3 in dat achiever?

The rule of thumb as mentioned in the solution is that:

anions will be bigger than cations because the former will have less nuclear charge to pull and shrink the electron cloud, and hence look bigger.

Hope this helps.🙂