What is the atomic number and mass number of proton and tritium.

What is atomic number and mass number?

What are atomic number and mass numbers ?

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

Nucleus of an atom has 6 protons and 8 neutrons. What is its atomic number and mass number? What is this element?

Assertion : The number of protons or the number of neutrons is known as atomic number. Reason : The mass number is sum of protons and neutrons.

Symbols of certain isotopes are given in table ,Complete the table writing their atomic number, mass number, number of protons, electrons and neutrons.