Question

To form Sn²⁺, Sn loses ["two 5p electrons" OR "two 4d electrons" OR "two 5s electrons"], and to form Sn⁴⁺, Sn loses ["two 5p electrons and two 5s electrons" OR "two 4d electrons and two 5s electrons" OR "four 4d electrons"]. Both of the resulting electron configurations result in a completely filled outer subshell.

Answer 1

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