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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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toni toni
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12 years ago
I know this is a stupid question but i forgot how to solve it. I already know the protons, all I need is the electrons and neutrons.
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wrote...
#1
12 years ago
25 Electrons and 30 neutrons
Protons and electrons are always the same.
wrote...
#2
12 years ago
proton #(from atomic number) = electron# for neutral atom.

neutron # = atomic mass number - atomic number

electron configuration = total number of electrons

Mn = 1s^2 2s^2 2p^63s^2 3p^64s^2 3d^5
Thus, Mn has 25 electrons

atomic number(Mn) = 25 i.e. 25 protons

hope this helps:-)
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