General Science MCQs – Atomic Structure (Job Test Preparation in Pakistan)
Which particles are found in the nucleus of an atom?
The nucleus of an atom contains protons and neutrons. Electrons are found orbiting around the nucleus.
What charge does an electron have?
An electron has a negative charge.
What charge does a neutron have?
A neutron has no charge; it is electrically neutral.
Which particle orbits around the nucleus?
Electrons orbit around the nucleus of an atom.
Who is known as the father of the atomic theory?
John Dalton is known as the father of the atomic theory.
Which particle has the smallest mass?
An electron has the smallest mass among the given options.
What do you call atoms of the same element with different numbers of neutrons?
Atoms of the same element with different numbers of neutrons are called isotopes.
What does the atomic number represent?
The atomic number represents the number of protons in an atom.
What does the mass number of an atom represent?
The mass number of an atom represents the total number of protons and neutrons.
Who discovered the neutron?
James Chadwick discovered the neutron.