How many electrons are contained in the electron shell of a neutral atom in the nucleus
| June 10, 2021 | education
How many electrons are contained in the electron shell of a neutral atom in the nucleus of which there are 7 protons and 8 neutrons?
In an electrically neutral atom, the number of protons is always equal to the number of electrons. The charge of a proton is +1, the charge of an electron is -1 (in units of elementary charge). To compensate the nucleus charge +7 7 electrons in the shell with a total charge of – 7 are needed. Neutrons have no charge (q = 0).
Answer: 7 electrons.
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