Answer to Question #263239 in General Chemistry for miaw

Question #263239

The proton number of elements J and K are 13 and 16 respectively. Suggest the most stable ions for J and K. State the type of stability of these two ions


1
Expert's answer
2021-11-09T10:28:58-0500

Number of protons is equal to number of electrons

The electron configuration of K is 1s2 2s2 2p6 3s2 3p4

The Valence shell (the 3s and 3p sublevel) contain 6 electrons but it needs eight to become stable (Octet rule)

Therefore K will gain two electrons with a charge of 2-

The stable ion of K is K2-


The electron configuration of J is 1s2 2s2 2p6 3s2 3p1

To be stable it loses 3 electrons

The stable ion of J is J3+


But the ions are electrically unstable

Such that they are quick to form chemical bonds


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