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Considering only ions with charges of +1, +2, -1 and -2, or neutral atoms, give the...

Considering only ions with charges of +1, +2, -1 and -2, or neutral atoms, give the symbols for 4 species that are isoelectronic with the strontium ion, Sr2+.

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Answer #1

Sr2+ is isoelectric with neutrol atom krypton. It  has 36 electron which are isoelectric with krypton=36 electron .

2 With -1 ion Br =35 Br-1 is isoelectric with Sr2+ ie =36 ion

3With -2 ion Se=34 ,Se2- is isoelectric with Sr2+ ie =36 ion

4 with +1 ion Rb+=36 ion .it is isoelectric with Sr2+.

Rb =37 electron

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