An atoms 'X' is made up of 20 protons and 20 neutrons. Write the atomic number and mass number and represent the atom with atomic number and number.

The nucleus of the atom of an element contains 17 protons and 18 neutrons. Calculate the atomic number and mass number of the element and represent them along with the symbol of the element.

The nucleus of the atom of an element contains 17 protons and 18 neutrons. Calculate the atomic number and mass number of the element and represent them along with the symbol of the element.

The number of protons in an atom of atomic number Z and mass number A is

The nucleus of an atom of an element contains 11 protons and 12 neutrons . Determine the atomic number and mass number of the element.