1. Element and Compound Review
Mr. Lotz 6-2

2. In the Substances below, which can be classified as elements.
NaCl Fe
H2O
NeO
Si2

3. Which element is found in all of the compounds below?
CO2Br
LiBr3HeO
FBrS
H2OBr

4. In our dot activity, which three elements are most commonly found in living things?
Oxygen, sodium, chlorine
Carbon, hydrogen, oxygen
Silicon, nitrogen, carbon
Oxygen, iron, helium

5. Why is salt not found on the periodic table?
Salt is a liquid
Salt is an element
Salt is a solid metal
Salt is a mixture
Salt is a compound

6. What elements are found in the compounds below?
Fe2O2
LiBrN
FeONa
OPS2

7. SO4 is not on the periodic table because it is comprised of two or more:
Liquids
Mixtures
Positrons
Compounds
Elements

8. Using the table below, what conclusions can you make?
Earth Component
Elemental Composition
Crust
O, Si, Al, Fe, Ca
Atmosphere
N, O
Ocean
H, O, Cl, Na
Organic Material(living things)
H, O, N, C

9. On the Periodic Table, elements to the left of the staircase are:
Liquids
Metals
Nonmetals
Metaloids
Gases
Noble Gases

10. What is this?

11. What is this?

12. What is this?

13. What is this?

14. What is this?

15. What is this?

16. What is this?

17. Answers Fe, Si2 Br: Bromine Mercury Carbon, Hydrogen, Oxygen Chlorine
Salt is a compound
A. iron, oxygen B. lithium, bromine, nitrogen C. iron, oxygen, sodium D. oxygen, phosphorus, sulfur
Elements
Any valid conclusions are accetable
Metals
Mercury
Chlorine
Bromine
Neon
Copper
Silver
Sodium