Atomic Structure and Subatomic Particles

What are the vertical columns on the periodic table called?

• Rows

• Periods

• Groups

• Blocks

How many electrons are needed in the outer energy levels of an atom to be stable?

• 2

• 4

• 6

• 8

Ionic bonds form between metals and ____.

• Nonmetals

• Noble gases

• Metalloids

• Other metals

What is the term for a mixture where the components are uniformly distributed?

• Homogeneous mixture

• Heterogeneous mixture

• Colloidal mixture

• Suspension

Is soda a mixture or a solution?

• Mixture

• Solution

• Suspension

• Colloid

What charge do protons carry?

• Negative charge

• Neutral charge

• Positive charge

• Variable charge

What is the term for a substance made of two or more different elements that are chemically bonded?

• Element

• Mixture

• Compound

• Solution

What is the center of an atom called?

• Nucleus

• Electron

• Proton

• Neutron

Where are neutrons located in an atom?

• In the nucleus

• In the electron cloud

• In the outer shell

• In the proton layer

What charge do electrons carry?

• Positive charge

• Neutral charge

• Negative charge

• Variable charge