What is the relationship between the number of protons and electrons in a neutral atom of a given element

Question

zale101 · Answer

http://en.wikipedia.org/wiki/Atom An atom is classified according to the number of protons and neutrons in its nucleus: the number of protons determines the chemical element, and the number of neutrons determines the isotope of the element.

gtxmuqsit · Answer

The no. of electron or proton determines the atomic no. The no. of proton+neutron is mass number for a neutral atom.