Unit 6 Atoms & PTE Test Review

Protons have what type of charge?

• Positive

• Negative

• Neutral

The nucleus is comprised of ___

• Protons and Electrons

• Protons and Neutrons

• Neutrons and Electrons

• Just Protons

Neutrons have what kind of charge?

• Neutral

• Positive

• Negative

Most of the mass of the atom is found ___.

• In the cloud

• In the nucleus

Electrons have what kind of charge?

• Positive

• Negative

• Neutral

What are atoms with the same number of protons but different numbers of neutrons?

• electrons

• protons

• neutrons

• isotopes

Calculation used to find the number of neutrons in an atom

• Atomic Mass - Atomic Number
• Atomic Number - Atomic Mass
• Atomic Mass - Electrons
• none of these

The horizontal row on the periodic table is called a

• group
• family
• period
• atomic number

A vertical column is called...

• group
• tower
• period
• crew

The number at the top of each square on the periodic table is the ...

• atomic number
• atomic mass
• Chemical Symbol
• Element Name