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the first shell can hold a maximum of two electrons. how does this explains the valence of hydrogen?

Respuesta :

scme1702
Hydrogen is the first element in the periodic table, and it has one proton. This means that it has one electron. 
This electron is in hydrogen's first shell, and hydrogen exhibits a valency of +1 but also may exhibit -1 just as easily. This is because the shell needs only one electron to be complete, or it may lose the electron and the hydrogen atom becomes a proton.
kdreams2020

Answer:

It can really only be one since the sum of the two are equal to 2, and that is the amount it needs to be stable.

(lol thats what i wrote in the lab)