please tell me

Asked by ketagajjar | 19th Feb, 2010, 01:01: PM

Expert Answer:

Atomic number  = no of electrons =no of protons

Atomic mass = no of protons +no of neutrons


Answered by  | 19th Feb, 2010, 08:23: PM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.