+1-315-636-4485
+91 98151-74050 
This set of MCQs helps you brush up on important chemistry topics and prepare you to dive into skill practice.
Which subatomic particle has a positive charge?
Neutron
Proton
Electron
None of these
Which subatomic particles have an approximate mass of 1?
Protons
Neutrons & electrons
Protons & neutrons
Protons & electrons
Which subatomic particle has a charge of -1?
Neutrons
Protons
Electrons
None of these
The nucleus of an atom consists of:
Protons and neutrons
Neutrons and electrons
Protons
Protons, neutrons, and electrons
An element is determined by the number of:
Neutrons
Atoms
Protons
Electrons
Which particles have approximately the same size and mass as each other?
Neutrons and electrons
Protons and neutrons
Protons and electrons
None - all are different in terms of size and mass
When you change the number of electrons on an atom, you produce a different:
Element
Charge
Ion
Isotope
Changing the number of neutrons of an atom changes its:
Isotope
Ion
Element
Charge
