In the symbol (4/2)he, the superscript 4 is the for helium, and the subscript 2 is the for helium.

the given symbol is

⁴₂He

subscript for the element is the atomic number of the element

atomic number is the number of protons . atomic number is characteristic for the element

superscript is the mass number. mass number is the sum of protons and neutrons. mass number means the atomic mass.

therefore atomic number is 2 and mass number is 4

the formula for the conversion of temperature from degree celsius to kelvin is:

the sample of water at is converted to kelvin temperature by using the above formula as:

on comparing the two samples of water at or we can say that at and at respectively. the difference between the temperatures of two samples of water is:

hence, one can say that the sample of water at is greater than the sample of water at by .