1. Helium is a noble gas, and it is an example of what?
a. Non-metals
b. metals
c. Metalloids
d. All of the above
2. Arsenic is an example of It has the properties of both metals and non-metals
a. Non-metals
b. metals
c. Metalloids
d. All of the above
3. Metals are good conductors of heat and electricity. Which element does NOT exhibit this property?
a. Aluminum
b. Sulfur
c. Chromium
d. Tungsten
4. Which of the following metals is used in thermometer?
a. Copper
b. Mercury
c. Gold
d. Iron
5. Elements that are brittle and cannot be rolled into wires are known as?
a. Metals
b. Non-metals
c. A and B
d. None of the above
6. Galvanized iron is commonly used for roofing is made up of iron metal. What properties of metals make it an appropriate roofing material?
a. it is not hard
b. it conducts heat
c. it is malleable
d. it is luster
7. Lithium (Li) has an atomic number of 3 is an example of.
a. non-metal
b. Metals
c. Metalloids
d. None of the above​