If you to know the number of protons in an atom of a given element, what would you look up?

1 Answer
May 14, 2017


If you are doing your chemistry homework there should be one beside you now!


And you would look up a #"Periodic Table"#. Such a #"Tables"# are always allowed in ANY chemistry or physics examination. It lists elements according to #Z#, their atomic number, and arranges the elements in Groups, which reflects their electronic structure.