5. Which of the following is not a property of metals?
a. brittle
b. ductile
c. lustrous
d. malleable
6. Which of the following elements is most likely a semiconductor?
a. silicon
b. carbon
c. osmium
d. nitrogen
7. Which of the following is not a property of nonmetals?
a. dull
b. brittle
c. low density
d. conductivity
8. Which of the following is not a metal?
a. Rn
b. Au
c. Co
d. Ni
9. Which of the following is not a nonmetal?
a. Ir
b. Xe
c. H
d. Te
10. Which of the following is not a metalloid?
a. Ru
b. Ge
c. As
d. Te5. Which of the following is not a property of metals?
a. brittle
b. ductile
c. lustrous
d. malleable
6. Which of the following elements is most likely a semiconductor?
a. silicon
b. carbon
c. osmium
d. nitrogen
7. Which of the following is not a property of nonmetals?
a. dull
b. brittle
c. low density
d. conductivity
8. Which of the following is not a metal?
a. Rn
b. Au
c. Co
d. Ni
9. Which of the following is not a nonmetal?
a. Ir
b. Xe
c. H
d. Te
10. Which of the following is not a metalloid?
a. Ru
b. Ge
c. As
d.Te
Answers
1) Which of the following is not a property of metals?
=> Brittle
2) Which of the following elements is most likely a semiconductor?
=> Silicon
3) Which of the following is not a property of nonmetals?
=> Conductor
4) Which of the following is not a metal?
=> Rn (Radon)
5) Which of the following is not a metalloid?
=> Rn (Radon)
The questions are answered below:
5. a. brittle is not a property of metals.
Brittle is the property of nonmetals and not metals. Rest all are the properties of metals. Wires can be drawn from metals, as they are ductile. Metals have a shining surface, hence they can be said to be lustrous. As metals can be beaten into sheets, they are malleable.
6. a. silicon is most likely a semiconductor.
A semiconductor has electrical resistance between conductors and insulators. Silicon is a nonmetal, which is a semiconductor. Graphite, a form of carbon, is a good conductor of electricity. Osmium is also a conductor. Nitrogen is an insulator.
7. d. conductivity is not a property of nonmetals.
Non-metals do not have lustre, hence they are dull. They are brittle and have a low density in comparison to metals. Conductivity is the property of metals and not non-metals.
8. a. Rn is not a metal.
Rn is radon, which is a noble gas. The rest, gold, cobalt, and nickel are transition metals.
9. a. Ir,b. Xe, d. Te is not a nonmetal.
Ir is iridium, which is a transition metal. Xe is xenon, which is a noble gas. H is hydrogen which is a nonmetal. Te is tellurium, which is a metalloid. So, out of these only hydrogen is a nonmetal.
10. a. Ru is not a metalloid.
Ru stands for ruthenium, which is a transition metal. Rest all, i.e., Ge, As, and Te are metalloids.