Question

2.) write the composition of
Atom
the first 18
elements
electron
distribution
various shells​

Answer 1

Answer:

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Explanation:

Composition of the Atom. The atom consists of a tiny nucleus surrounded by moving electrons. The nucleus contains protons, which have a positive charge equal in magnitude to the electron's negative charge. The nucleus may also contain neutrons, which have virtually the same mass but no charge.

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Answer 2

Answer:

The rules for writing of the distribution of electrons in various shells for the first eighteen elements are given below: (1) The maximum number of electrons that a shell can hold is given by the formula '2n^2', where 'n' is the orbit number or energy level index (n = 1, 2, 3...).

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