hannahkharel2
21.05.2020 •
Chemistry
? P+ ? Br→ ? PBT
Which set of coefficients will balance this equation?
O A 3, 1, 1
OB 2, 6, 2
O c 23, 2
OD 3,2,3
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Ответ:
The answer to your question is below
Explanation:
Elements in group 1A all:
a. gain 1 electron This option is wrong, elements in group 1A loses one electron.
b. lose 1 electron This option is right.
c. are non-metals This option is incorrect, elements in group IA, are metals.
d. have 2 energy levels This option is incorrect, only one element in each group has 2 energy levels.