Isoelectronic Series?
First of all, could someone tell me what an isoelectronic series is?
And which of the following are isoelectronic series?
Na+, K+, Rb+, Cs+
Al3+, Mg2+, Na+, Si4+
Al, Si, P, S
P3+, P, P5+
N+3, N, N+5
O2-, S2-, Se2-, Te2-
N3-, P3-, As3-, Sb3-
Comments
An isoelectronic series is a group of atoms and/or ions all of which have the same number of electrons. So, you need to look at each of these groups and see which groups all have atoms and ions with the same number of electrons.
The first one IS NOT isoelectronic since these atoms are in different periods.
The second one IS an isoelectronic series. All of those ions are left with 10 electrons.
Given this information, you should be able to decide if any of the other groups are all isoelectronic.
Isoelectronic Series
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RE:
Isoelectronic Series?
First of all, could someone tell me what an isoelectronic series is?
And which of the following are isoelectronic series?
Na+, K+, Rb+, Cs+
Al3+, Mg2+, Na+, Si4+
Al, Si, P, S
P3+, P, P5+
N+3, N, N+5
O2-, S2-, Se2-, Te2-
N3-, P3-, As3-, Sb3-
Isoelectronic
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