Helium is a nonmetal. There are several reasons for this, it is unable to donate electrons and It has an extremely low melting point.
Answer:
I think that the statement is relative to speed because it is saying km per second.
Answer:
Francium (Fr)
Explanation:
Looking at the periodic table, Francium has 7 energy levels as it is in the 7th Period and is in the 1st Group (meaning it has one electron in the outermost shell) which suggests that it has one valence electron.
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Answer:
Ca^+2
Explanation:
Hence, the correct option is A.
Answer:
Is it prescribe to you?If so than yes if not then no need to
Explanation: