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Einsteinium has 99 protons and 99 electrons.

Number of neutrons = Atomic Mass of an isotope - Atomic number of the element

Einsteinium's atomic number is 99 but Es has 19 known isotopes.

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How many electrons does a neutral einsteinium atom have?

Einsteinium has 99 electrons.


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Electron per shell in einsteinium: 2, 8, 18, 32, 29, 8, 2.


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Einsteinium has 153 neutrons, 99 protons, and 99 electrons. It's atomic mass is 252 and its shells are 2, 8, 18, 32, 29, 8, 2. Its chemical symbol is Es. Einsteinium has 19 isotopes; each isotope has a different number of neutrons.


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