1.Which nonmetal has a metallic luster?
1) sulfur
2) phosphorus
3) iodine
4) boron
2. Graphite and diamond are allotropic modifications of:
1) sulfur
2) phosphorus
3) carbon
4) boron
3.Ozone is:
1) an allotropic modification of oxygen
2) liquid at n.s.
3) noble gas
4) blue gas
4.Nonmetals can be in:
1) gaseous state
2) solid state
3) liquid state
4) in all of the above
5. Helium, unlike hydrogen, is:
1) gaseous
2) colorless
3) it is not combustible
4) lighter than hydrogen
6.A liquid at atm is:
1) fluorine
2) chlorine
3) iodine
4) bromine
7.Which solid is yellow, solid, and insoluble in water?
1) sulfur
2) bromine
3) carbon
4) phosphorus
8.Select the “extra”:
1) oxygen
2) nitrogen
3) iodine
4) hydrogen
9.In the Periodic Table, how many elements are nonmetals?
1) 92
2) 22
3) 23
4) 114
10.Noble gases are:
1) Group VIII A elements, one-atom molecules
2) Group VII A elements, one-atom molecules
3) Group VII A elements, two-atom molecules
4) Group VIII A elements, two-atom molecules
Answers:
1) 3;
2) 3;
3) 1;
4) 4;
5) 3;
6) 4;
7) 1;
8) 3;
9) 2;
10) 1;
