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2. Atoms and the Periodic Table - Part 3 of 3
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2. Atoms and the Periodic Table - Part 3 of 3
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2. Atoms and the Periodic Table / Ions and the Octet Rule (Simplified) / Problem 7
Problem 7
Choose the correct statement on the formation of a strontium ion and the complete octet.
A
Strontium gains two valence electrons to form Sr
2–
and to achieve a complete octet in the fifth energy level.
B
Strontium gains two valence electrons to form Sr
2+
and to achieve a complete octet in the fifth energy level.
C
Strontium loses two valence electrons from the fifth energy level to form Sr
2+
and to achieve a complete octet in the fourth energy level.
D
Strontium loses two valence electrons from the fifth energy level to form Sr
2–
and to achieve a complete octet in the fourth energy level.
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