Multiple Choice
Which of the following is correct for the fourth period element in Group 3A/13?
Z Chemical symbol Atomic mass
A) 31 Ga 69.72
B) 69.72 Ga 31
C) 14 Si 28.09
D) 28.09 Si 14
E) 21 Sc 44.96
Correct Answer:
Verified
Correct Answer:
Verified
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