IGCSE Physics : The Nuclear Atom

Front

What is the charge of a proton?

Back

1+

Front

What is the charge of an electron?

Back

1-

Front

What is the mass of a neutron?

Back

1

Front

What is the mass of an electron?

Back

Almost zero

Front

What is the atomic number of an atom?

Back

The number of protons as well as number of electrons

Front

What is the mass number of an atom?

Back

The number of protons and neutrons

Front

What are isotopes?

Back

Atoms of the same element with different numbers of neutrons

Front

An atom has 13 protons and 14 neutrons. What is its mass number?

Back

27

Front

An atom has an atomic number of 9 and a mass number of 19. What are its numbers of protons, neutrons and electrons?

Back

Protons = 9, neutrons = 10, electrons = 9

Front

What is the nature of alpha particle?

Back

Helium