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- 1. Multiple Choice
How are elements in the periodic table organized?
Alphabetically
Based on physical and chemical properties
Increasing number of electrons
Most reactive to least reactive
- 2. Multiple Choice
most elements on the periodic table are classified as __________.
Gases
Metalloids
Metals
Nonmetals
- 3. Multiple Choice
Groups on the periodic table are arranged vertically.
True
False
- 4. Multiple Choice
Which accurately describes nonmetals?
Poor conductors of electricity
Often used in computer parts
Both malleable and ductile
Always solid at room temperature
- 5. Multiple Choice
Which group on the periodic table is the most reactive?
Alkali metals
Alkaline-earth metals
Transition metals
Halogens
- 6. Multiple Choice
Which group of elements is un-reactive?
Noble Gases
Inner transition metals
Transition metals
Alkaline-earth metals
- 7. Multiple Choice
Which properties most accurately describe the element silicon (Si)?
Highly conductive, solid at room temperature
Weak conductor of electricity, solid at room temperature
Poor conductor, transparent
Ductile and malleable
- 8. Multiple Choice
How many periods are there in the periodic table?
7
9
10
18
- 9. Multiple Choice
Which group of elements does not melt or change when placed in fire?
Alkali metals
Alkaline-earth metals
Halogens
Noble gases
- 10. Multiple Choice
Which group of elements on the periodic table are all gases at room temperature?
Alkali metals
Metalloids
Halogens
Noble gases
- 11. Multiple Choice
What does a chemical change result in?
A phase change in the substance (ex. liquid to solid)
A change in texture of the substance.
A change in the way atoms are bonded to each other.
A change in the way atoms are arranged in space.
- 12. Multiple Choice
Which of the following is an example of a physical change?
Baking a birthday cake
A glass falling and shattering on the floor
Burning a piece of paper
Baking soda and vinegar mixing together
- 13. Multiple Choice
A statue damaged by acid rain is a chemical change.
True
False
- 14. Multiple Choice
A baby gaining weight is an example of a _________ change.
Chemical
Physical
Both
- 15. Multiple Choice
C3H8 + O2 --> CO2 + H2O
1 : 5: 3 : 4
2 : 5: 3 : 2
2 : 5: 3 : 4
1 : 4: 3 : 4
- 16. Multiple Choice
C6H12O6 + O2 --> H2O + CO2
1: 6: 6: 6
1: 6: 6: 5
1: 5: 5: 5
1: 6: 5: 6
- 17. Multiple Choice
KOH + Co3(PO4)2 --> K3PO4 + Co(OH)2
6: 2: 2: 3
6: 1: 2: 3
6: 2: 1: 3
6: 1: 3: 2
- 18. Multiple Choice
The smallest unit of an element is __________________.
an atom
a cell
matter
a proton
- 19. Multiple Choice
The nucleus is made up of __________________.
electrons & neutrons
electrons & protons
neutrons & protons
protons only
- 20. Multiple Choice
An atom is made mostly of __________________.
electrons
empty space
neutrons
protons
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