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U-238 has 92 electrons.

In the Periodic Table it is found at the bottom of the table, in the Actinides Period.

Atomic No. 92 is U (Uranium)

This number tells us that there are 92 protons and 92 electrons in an atom of uranium .

The Atmoic Mass is 238 . This is made up of the total number of protons and neutrons in the nucleus of U .

Hence the number of neutrons is 238 - 92 = 146.

Uranium exhibits several isotopes.

U-235 ; 92 protons , 92 electrons & 143 neutrons

U-236 ; 92 protons, 92 electrons & 144 neutrons

U-238 ; 92 protons, 92 electrons & 146 neutrons.

Notice for all the isotopes of 'U' the number of protons and electrons remains the same at '92' each. It is the different number of neutrons that make for different isotopes.

The name 'Uranium' comes from the planet 'Uranus' , which it turn comes from Classical Greek God, 'Uranus', the God of the sky.

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lenpollock

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1y ago

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