Multiple Choice
If a material can easily be drawn into the shape of a wire, it is..
a. ductile
b. magnetic
c. malleable
d. reactive
a. ductile
The family in the periodic table that contains the most reactive metals is the __________ metals.
alkali
Which of the following is not a property of most nonmetals?
a. found on the right side of the periodic table
b. solids tend to be dull and brittle
c. excellent electric conductivity
d. many are gases at room temperature
c. excellent electric conductivity
Atoms of nonmetals usually lose electrons when they combine with other atoms.
false, gain
a. brittle
b. good conductor
c. ductile
d. malleable
__________ are devices that move atomic nuclei at extremely high speeds.
particle accelerators
a. carbon
b. oxygen
c. nitrogen
d. fluorine
a. carbon
The elements that have some properties of metals and some properties of nonmetals are called halogens.
False, metalloids
The metals of Group 1 are commonly called the...
a. transition metals
b. alkaline earth metals
c. lanthanides
d. alkali metals
d. alkali metals
Elements with atomic numbers above 95 are called __________ elements.
transuranium
Two of the same atoms bonded together is called a(n)
a. isotope
b. diatomic molecule
c. binary atom
d. semiconductor
b. diatomic molecule
Helium has chemical properties so different from those of the other elements that it cannot be placed in any group.
False, hydrogen
One metal that is a liquid at room temperature is
a. magnesium
b. manganese
c. mercury
d. sodium
c. mercury
Thermal conductivity is the ability of an element to transfer ___________.
heat
The highly reactive nonmetals of Group 17 are called the
a. noble gases
b. metalloids
c. halogens
d. actinides
c. halogens
Substances that can carry electric current under some conditions but not under others are called semiconductors.
true
Gold, which is in group 11 on the periodic table, is an example of this type of metal...
a. transition
b. alkali
c. lanthanides
d. earth
a. transition
Reactivity is a(n)__________ property of metals.
chemical
When two or more atoms bond by sharing electrons, the form a..
a. molecule
b. atom
c. electron
d. proton
a. molecule
The Group 15 element oxygen is used to make compounds known as fertilizers.
false, nitrogen.