Achemical property the of a substance to chemically react or change in some way into a

A chemical property is the characteristic property of a substance to chemically react or change in some way into a new substance.

Explanation:

A chemical property of a substance is determined by the chemical change.

A chemical change is defined as the change in the chemical composition of a substance resulting in the formation of new substance. It is usually an irreversible reaction.

Hence, a chemical property is the characteristic property of a substance to chemically react or change in some way into a new substance.

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.

considering the question as per the attachment

here we can see that the radon nuclide has 222 as the atomic mass number and 86 as the atomic number.

when it undergoes nuclear fission it gives polonium which has atomic mass number as 218 and atomic number will be 84 along with a helium nucleus which has 4 atomic mass number and 2 as its atomic number.

222 = 218 + 4 (atomic mass number)

86 = ? + 2; therefore ? = 86-2 = 84.

the atomic mass number of polonium will be 84.