Atomic Number , ______ : : Mass number : Number of protons and neutrons

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.

The atomic number of an element is 17 and its mass number is 37. The number of protons, electrons and neutrons present in the neutral atom are :

The atomic number of an element is 17 and its mass number is 37. The number of protons, electrons and neutrons present in the neutral atom are :

The atomic number of an element is 12 and its mass number is 24. The number of elecetrons , protons and neutrons respectivity will be

The element with atomic number 84 and mass number 218 change to other element with atomic number 84 and mass number 214. The number of alpha and beta particles emitted are respectively.