U2 The Atom Review

The ____________ is the subatomic particle that is responsible for the identity of the atom and is determined by the atomic number.

The ___________ is located outside the nucleus and is responsible for reactivity.

The ________ is located inside the nucleus and gives the atom stability.

The proton and the neutron both have a mass of _____ amu.

The atomic number is equal to the number of ________.

The mass number is equal to the sum of _______ and ______.

A charged particle is called an ________.

A neutral particle (charge = 0) is called an _________.

A positively charged particle is called a _________.

A negatively charged particle is called a ________.