Okay so we are given these requirements:
element which can be used to stuff bottles that enclose ancient paper must be a gas at room temperature must be denser than helium must not react with other elements
The only element that comes into my mind is:
<span>Argon</span>
Na is a metal
N is a nonmetal
thus, they form an ionic bond, where electrons are transferred from the metal, to the nonmetal
your answer is A....
Answer:
sdadasnj
Explanation:
equal the number of electrons.
