Matter and Atomic Structure

What is a valence electron?

• A nice curtain that hangs at the top of the window.

• The electrons in the outermost energy level (shell) of an atom.

• The electrons in the innermost energy level (shell) of an atom.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

APE MAN stands for...

• Atomic Number = Periodic Table = Elements

  Atomic Mass-Atoms=Notes

• Atomic Number = Protons = Electrons

  Atomic Mass-Atomic Number=Neutrons

• Atomic Mass=Photos=Elements

  Mass-Atomic Number=Name

A state of matter with a definite volume, but not definite shape is a(an) ________/

• Gas

• Solid

• Liquid

A phase of matter with a definite volume and shape is a(an) ________.

• Gas

• Solid

• Liquid

Tags

NGSS.MS-PS1-4

A phase of matter that has no definite volume and no definite shape.

• Gas

• Solid

• Liquid

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Describe the particles in a solid.

• Far apart and move in all directions at great speed.

• Particles packed together. Move very little.

• Loose particles that move freely around one another.

Describe the particles in gas.

• Far apart and move in all directions at great speed.

• Particles packed together. Move very little.

• Loose particles that move freely around one another.

Describe the particles in a liquid.

• Far apart and move in all directions at great speed.

• Particles packed together. Move very little.

• Loose particles that move freely around one another.

Which state of matter takes the shape of its container?

• Gas

• Solid

• Liquid

________ is the change from a gaseous state to a liquid state.

• Freezing

• Condensation

• Melting

• Evaporation

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4