A neutral atom 'X' has a mass number 12 and atomic number 6. Calculate the number of electrons present in the atom.
Which of the following subatomic particles is present in equal numbers in a neutral atom?
(a) Name the three fundamental particles of an atom. Give the symbol and charge of each particle.
(b) Draw the orbital diagram of 4020Ca2+ ion and state the number of three fundamental particles present in it.