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Hydrogen has only one valence electrons.

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7y ago

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How many outer shells does beryllium have?

Beryllium has one outer electron shell with two electrons.


How many electrons are there in outer shells?

Atoms can have a maximum of 8 electrons in their outermost energy level, except hydrogen and helium which can have a maximum of 2 electrons. The number of electrons in the outer shell determines an atom's chemical properties and reactivity.


What do electrons have to do with chemical bonds?

Each element has shells of electrons and they are limited to how many can be shared in the outer shell. This lets us know what and how many atoms can combine with it. Hydrogen has the need for one electron in its outer shell. Oxygen has the need for two more electrons in its outer shell. Therefore, 2 hydrogen atoms can combine with oxygen.


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How many shells does berkelium have?

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How many electrons on their outer shell does hydrogen have?

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