Now that we know how to determine the the number of protons in
the nucleus for a particular element, determining the number of electrons is
straight forward. We must remember that an atom is electrically
neutral. Since each proton carries a +1 charge, there must be an equal
number of electrons in the atom, as each electron carries a -1 charge.
The periodic table of elements SHOWS you
the atomic number (or the number of protons) of each element. Take a
look at the periodic table closely to verify the number
of electrons for the first 10 elements by clicking on the symbol of the
element.
Section 4.4 Electrons,
Protons,
and
Neutrons. Atomic
Number ..p83
Section 4.4
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