C, it prevents the Earth from ultraviolet radiation and other harmful substances from space
Answer:
I don't know and I don't understand
Explanation:
I don't know and I don't understand
sorry
sorry for not being able to answer your question
Metallic solids or metallic structures experience metallic bonds which are the forces of attractions between the sea of electrons and the nucleus of the metallic atoms. They share a network of highly delocalized electrons.
I therefore think that the packing efficiency decreases as the number of nearest neighbors decreases.
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Their locations can vary depending on the molecule they are associated with but they are usually in a "cloud " that is on the outside of an atom/molecule and if the atom is unstable the electrons tend to be located farther away from the atom.
