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2. Atoms and the Periodic Table - Part 1 of 3
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2. Atoms and the Periodic Table - Part 1 of 3
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2. Atoms and the Periodic Table / Ions (Simplified) / Problem 9
Problem 9
Identify the species that is isoelectronic with Se
2–
.
A
Kr
B
Ca
2+
C
Na
+
D
Cl
–
E
P
3–
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