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.
Brass is an alloy containing copper and? ...
What does ∆H represent in the following equation ? Cl(g) + e- → CI- (g); ∆H = - 363 kJ mol-1...
MnO2(s) + xHCl(aq) → MnCl2(aq) + yH2O(l) + zCl2(g) In theequation above, what are the values of x...
Which of the following statement is not correct about esterification? ...
Nuclear reactions can be used in the following except ...
What is the chemical symbol for Molybdenum? ...
In which of the following processes are larger molecules broken down into smaller molecules?...
Which of the following CANNOT be an empirical formula? ...
Which of the following equimolar solutions will have the highest pH? ...