number of neutrons

The nuclei of atoms is made up of protons and neutrons. These two components of the nucleus are referred to as nucleons. The electrons occupy the space outside the nucleus. Since an atom is electrically neutral, the number of protons in the nucleus is exactly equal to the ..

The atoms of different elements, which have the same number of neutrons but different atomic numbers, are called isotone..

Atomic number = number of protons = 11 Mass number = number of protons + number of neutrons = 11 + 12 = ..

It is interesting to note that atoms of a given atomic number can have different number of neutrons..

It is interesting to note that atoms of a given atomic number can have different number of neutrons. Some examples are listed belo..

Isotopes - It is interesting to note that atoms of a given atomic number can have different number of neutrons. Some examples are listed belo..

Atomic number Z = 12, Mass number A = 25 Number of protons = Z = 12 Number of neutrons = A number of protons = 25 - 12 = 13 2. Find (i) the total number of neutrons and (ii) total mass of neutrons in 7 mg..

These are the elements having same atomic number but different mass number. They have the same atomic number because the number of protons inside their nuclei remains the same. The difference in their mass number is due to the difference in th..

All isotopes of an element have the same number of valence electrons thus have identical chemical properties. The physical properties of the isotopes are different due to the difference in the number of neutrons in their nuclei. The densities, melting points and b..

To control the fission reaction, rods made of cadmium or boron is suspended between the fuel rods. These rods can be raised or lowered and thus check the reaction by absorbing the right number of neutrons. Hence they are called control rods. When the control rods are completely..