PSU4.A Pg 3-4

Beryllium

Carbon

Potassium

Which part of an atom occupies most of the volume?

The center of an atom is called the __________ ?

The nucleus is made up of 2 particles. Select the correct 2 particles below.

Parts of the atom that determine the identity of the atom (what kind of atom it is)

How many protons are in Sodium?

How many electrons are in Potassium?

Parts of the atom that are the smallest of the three subatomic particles

What is the Atomic Number of this Element

Which subatomic particle(s) do we use to calculate mass number? (Select all that apply)

Which subatomic particle(s) do we use to find atomic number? (Select all that apply)

What is the Name of this atom?

What is the mass number of this atom?