ERSC 1F90 Lecture Notes - Lecture 2: Richard Feynman

Which statement compares the masses of two subatomic particles?
a. The mass of an electron is greater than the mass of a proton.
b. The mass of an electron is greater than the mass of a neutron.
c. The mass of a proton is greater than the mass of an electron.
d. The mass of a proton is greater than the mass of a neutron.

5. ______ is the basic unit of all elements of a matter.
6. An atom that contains fewer electrons than protons is said to be _______ charge.
7. A particle that contains more electrons than protons is ______ charge.
8. If an atom contains equal numbers of electrons and protons, the atoms are described as _______.

a. atom b. electrically neutral

c. electron d. negatively

e. neutron f. nucleus

g. positively h. proton