Structure & Properties of Matter

The smallest particles of matter are called

• neutrons

• atoms

• electrons

• protons

What does the atomic number represent?

• how many atoms are in a group.

• how much an atom weighs.

• the number of protons in the nucleus of the atom.

particles are packed tightest in a

• solid

• liquid

• gas

• plasma

Tags

NGSS.MS-PS1-4

particles move fastest in a

• solid

• liquid

• gas

• slime

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which particles are contained in the nucleus of an atom?

• neutrons and electrons

• protons and neutons

• protons, neutron, and electrons

Tags

NGSS.MS-PS1-1

which subatomic particles have no charge (they are neutral)?

• protons

• neutrons

• electrons

What is a subatomic particle with a positive charge?

• Proton

• Neutron

• Electron

Which subatomic particles are much smaller than the others and have a negative charge?

• protons

• neutrons

• electrons

The amount of matter in an object

• Mass

• Volume

• Density

the amount of space an object takes up

• Mass

• Volume

• Density