Question

What war the answers?

Answer 1

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An atom can be identified by its elemental number. The atomic number is equal to the number of protons located in the nucleus. The protons are positively charged particles. Each ion has a specific place in an atom. Electrons are located outside of the nucleus. The electrons are arranged by the electron shells in the atom(?). Each element has electrons that can only hold a certain number of electrons for each energy level. Electrons have many shells - the electron cloud/shell with the most energy is known as the valence(?). The valence electrons are located at the outermost shell of the electron cloud.

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