The mass number of a nucleus is?
...The mass number of a nucleus is?
Always less than its atomic number
The sum of the number of protons and neutrons present in the nucleus
Always more than the atomic weight
A fraction
Correct answer is B
mass number, is the sum of the numbers of protons and neutrons present in the nucleus of an atom.
The maximum electron in N shell is? ...
How many unpaired electron(s) are there in the nitrogen sub-levels? ...
A constituent common to bronze and solder is? ...
Hydrogen sulphide gas can act as? ...
The major source of oxides of nitrogen is from the burning of ...
An efflorescent compound is a substance that? ...
Sodium and potassium belong to the same group of the Periodic Table. This is because? ...