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18-02-2020
Chemistry

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Neils Bohr published his model of the atomic structure in 1913. He introduced the theory of electrons traveling in orbits around the atom's nucleus, with electrons orbiting only in certain orbits called shells. Each shell can contain a fixed number of electrons.

According to this model of the atom, the chemical properties of an element are mainly determined by ________.

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18-02-2020

Answer:

The number of atoms in the outermost shell

Explanation:

For example, the electron shells in the alkali metals contain the following numbers of electrons:

Li: 2, 1

Na: 2, 8, 1

K: 2, 8, 8, 1

They all have one electron in their outermost shell, and they have similar chemical properties.

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