Basic Science Ch. 2 Test

The tiniest particles in an atom, they move around the nucleus.

• Proton
• Neutron
• Electron

One type of element where the atoms have different numbers of neutrons.

• isotopes
• natural elements

The particles in an atom that are about the same size as the Proton?

• Neutron
• Electron
• Nucleus

Characteristics that help identify objects are called ____

• atoms
• models
• properties

Substances that are made up of only one kind of element.

• Element
• Electron
• Compound

A very hot gas with an electric charge.

• Proton
• Periodic
• Plasma

What is the smallest particle of a substance that can still have the properties of the substance.

• Atom
• Molecule
• Compound

A form of matter with definite volume but no definite shape is a(n) ________.

• solid
• liquid
• gas

Choose the worst description:

• sphere, white with red stitching , leather
• brown, oval, edible
• silver, shiny, reflective,

Explain WHY the one you chose was the worst description.