Matter Flashcards
1
Q
Substances that contain only one type of atom are called what?
A
Elements
2
Q
Substances that contain only one type of molecule are called what?
A
Compounds
3
Q
Elements and compounds are both what?
A
Pure substances
4
Q
What are the three types of mixtures?
A
Solution, colloid, mechanical
5
Q
What is another name for a solution?
A
Homogeneous mixture
6
Q
What is another name for a colloid?
A
Dispersion
7
Q
What is another name for a mechanical mixture?
A
Heterogeneous mixture
8
Q
Is table salt, sodium chloride, an element, compound, or mixture?
A
Compound
9
Q
How many electrons can the first, second, and third orbits of an atom hold?
A
2, 8, 8
10
Q
Atoms that have the same number of protons but different numbers of neutrons are called what?
A
Isotopes
11
Q
State the particle theory of matter.
A
- Particles are always in motion.
- All matter is made of tiny particles called atoms.
- All particles of one substance at exactly the same.
- Particles are spaced very far apart.
- There is a force of attraction between particles
