Unit 7 Concept 1

Question 1

Protons

Answer 1

This subatomic particle is what gives the nucleus and overall positive charge

Question 2

Electron cloud

Answer 2

This is the space surrounding the nucleus that has an overall negative charge

Question 3

Atom

Answer 3

The smallest particle of an element that still has the element properties

Question 4

Valence electrons

Answer 4

Located in the outermost energy level of the electron cloud with the most energy

Question 5

Neutrons

Answer 5

This subatomic particle contributes to the overall mass of an atom but not its charge

Question 6

Nucleus

Answer 6

The dense center of an atom

Question 7

Quarks

Answer 7

The smallest know particles that make up both protons and neutrons

Question 8

Shells

Answer 8

Also known as energy levels these break up the region of space surrounding the nucleus

Question 9

Electrons

Answer 9

The subatomic particle located in the space surrounding the nucleus

Question 10

Elements and compounds in CO2

Answer 10

One atom of carbon and two atoms of oxygen