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 periodic table is an arrangement of elements according to their? ...
Which of the following happens during the electrolysis of molten sodium chloride? ...
What mass of water is produced when 8.0g of hydrogen reacts with excess oxygen? ...
A carcinogenic substance is ...
Stainless steel is an alloy of? ...
What is the atomic number of Tin? ...
Which of the following will change when a catalyst is added to a chemical reaction? ...