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HELP! An atom of beryllium has an atomic number and a mass number of 9. Describe the numbers and arrangements of the protons, neutrons and electrons in this atom.

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asked Dec 15, 2017 117k views

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HELP!

An atom of beryllium has an atomic number and a mass number of 9.

Describe the numbers and arrangements of the protons, neutrons and electrons in this atom.

Chemistry
high-school

Shobi asked

by Shobi

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I did a project on berylium and I am happy to help! Beryllium has 4 protons and 5 neutrons. It also has 2 electrons

Jeff P Chacko answered Dec 20, 2017

by Jeff P Chacko

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HELP! An atom of beryllium has an atomic number and a mass number of 9. Describe the numbers and arrangements of the protons, neutrons and electrons in this atom.

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