a substance that can make something happen faster but is not changed itself
What is a catalyst
100
Which element has the highest melting point of all the elements?
a. bromine b. iodine c. tungsten
What is tungsten
100
List the characteristics of Metals
What is shiny, solid at room temperature, bent and molded
100
symbol for aluminum
What is Al
200
contains elements that have similar physical or chemical properties
What is a group
200
Which element below is NOT a transition element?
a. gold b. calcium c. silver
what is calcium
200
symbol for Helium
What is He
300
a row of elements in the periodic table whose properties change gradually and predictably
What is a period
300
Which of the following elements is likely to be contained in a substance with a brilliant yellow color?
a. chromium b. calcium c. silver
What is calcium
300
Characteristics of metalloids
What is dull, gases at room temperature
300
symbol for Carbon
What is C
400
doesn't conduct electricity as well as a metal, but does conduct electricity better than a nonmetal
What is a semiconductor
400
Which of the following groups from the periodic table combines most readily with other elements to form compounds?
a. transition metals b. alkaline earth metals c. alkali metals
What is alkali metals
400
symbol for Sulfur
What is S
500
elements made in laboratories and nuclear reactors
What is synthetic elements
500
Which element has the lowest melting point of all the elements?
a. mercury b. iodine c. bromine
What is mercury
500
Characteristics of non-metals
What is characteristics of metals and nonmetals
solid at room temperature