PSU4.A Pg 3-4

Multiple Choice

Beryllium

• Be

• B

• Br

• Ba

Multiple Choice

Carbon

• C

• Ca

• Ce

• Cs

Multiple Choice

Potassium

• K

• P

• Kr

• Po

Categorize

Options (19)

negative charge

No charge

Positive Charge

Found in the nucleus

Mass of approximately 1 atomic mass unit

Determines the atomic number

Contributes to the atomic mass

Positively charged subatomic particle

Found in the nucleus

Mass of approximately 1 atomic mass unit

Contributes to the atomic mass

Neutral subatomic particle

Helps stabilize the nucleus

Found in electron shells

Mass is negligible compared to protons and neutrons

Involved in chemical bonding

Negatively charged subatomic particle

Can be gained or lost in chemical reactions

Classify the charges

Protons

Neutrons

Electrons

Multiple Choice

Which part of an atom occupies most of the volume?

• Electron cloud

• Neutrons

• Nucleus

• Protons

Multiple Choice

The center of an atom is called the __________ ?

• neutron

• nucleus

• number

• Centergon

Multiple Select

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

• protons

• neutrons

• electrons

Multiple Choice

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

• Protons

• Neutrons

• Electrons

Multiple Choice

How many protons are in Sodium?

• 11

• 22

• 12

• 33

Multiple Choice

How many electrons are in Potassium?

• 19

• 20

• 58

• 39

Multiple Choice

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

• Protons

• Neutrons

• Electrons

Multiple Choice

What is the Atomic Number of this Element

• 7

• 3

• 4

• 1

Multiple Select

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

• electron

• proton

• neutron

• none of these

Multiple Select

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

• electron

• proton

• neutron

• none of these

Multiple Choice

What is the Name of this atom?

• Hydrogen

• Fluorine

• Boron

• Beryllium

Multiple Choice

What is the mass number of this atom?

• 8

• 4

• 13

• 9