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Alexxx [7]
3 years ago
12

Consider three elements A B and C all of which have atomic numbers of less then 20. The atomic number of A is x, and the atomic

number of B is three less than the atomic number of A
Element A forms cations with formula A+ and reacts with element C to form a solid substance with the formula AC

What is element A
Which group does element C belong to
Chemistry
1 answer:
Aleksandr-060686 [28]3 years ago
6 0

Answer:

LiH

A is lithium

group 1 or 7

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Answer:

0.61 L

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D. All of the above

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