How would you determine the total number of electrons found in an atom?

1 Answer
Sep 25, 2017

Answer:

You would look up the atomic number, #Z#, of that atom.......

Explanation:

To a firat approximation all matter, and thus all elements, are neutral. #Z#, the atomic number, represents the number of positive, nucular charges; i.e. #Z=1#, #"hydrogen"#, #Z=2#, #"helium"#.......#Z=23#, #"vanadium"#.

For every positively charged nuclear there MUST be a negatively charged EXTRA-NUCLEAR particle, i.e. an electron, conceived to whizz about the nuclear core.

Of course, elements can form ions, with a net charge defined by the excess or deficiency of electrons with respect to the atomic number #Z#.