25. Select the correct statement. a) Nat and K*,are isoelectronic because they both lost one electron and are in Group 1A. Ar and K* are isoelectronic because they both have 18 electrons. b) c) Na and Mg are isoelectronic because they both are in the third period. d) Cat and Ca²+ are isoelectronic because theylboth are charged atoms of calcium and lost electrons.

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25. Select the correct statement.
Nat and Kt,are isoelectronic because they both lost one electron and are in Group 1A.
a)
b) Ar and K* are isoelectronic because they both have 18 electrons.
c) Na and Mg are isoelectronic because they both are in the third period.
d)
Cat and Ca2+ are isoelectronic because theylboth are charged atoms of calcium and lost
electrons.
Transcribed Image Text:25. Select the correct statement. Nat and Kt,are isoelectronic because they both lost one electron and are in Group 1A. a) b) Ar and K* are isoelectronic because they both have 18 electrons. c) Na and Mg are isoelectronic because they both are in the third period. d) Cat and Ca2+ are isoelectronic because theylboth are charged atoms of calcium and lost electrons.
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