Physics ch17 The Atomic Nature of Matter

the building blocks of matter

• atoms
• electrons
• protons
• neutrons

approximate number of atoms in one gram of water

• 23^10
• 10^23

Atoms are constantly _____.

• disappearing
• moving
• being created
• being destroyed

In solids the rate of atomic movement is _____.

• ultra high
• medium
• high
• low

In liquids the rate of atomic movement is _____ than in solids.

• lower
• higher

In _____ the rate of atomic movement is greater than in either solids or liquids.

• ice
• water
• gases

Atoms cannot be seen with a light microscope because they are _____ than the wavelengths of light.

• smaller
• larger

A pure substance composed of only one kind of atom.

• element
• proton
• compound

most abundant element in the universe

• hydrogen
• helium
• carbon
• calcium

the constant random movement of microscopic particles in fluid caused by movement of atoms of the fluid

• Brownian Motion
• Whiting Motion
• Undying Devotion
• Drowning in Emotion