Type the symbol The largest Alkali Metal ———
Halogen that is liquid at room temperature———
Most common element in earth———
Nonmetal with one valence electron———
A dense metal named for its use by Romans as pipes for plumbing———
Largest atomic radius of all period 4 element———-
Nonmetal that gain 3 electron to be stable like Neón———
Metalloid that that is a major component of sand———

If we compare and contrast electromagnetic waves with sound waves, all but one statement is true. that is a) sound waves require a medium to travel while electromagnetic waves do not. b) electromagnetic waves can travel through the vacuum of space while sound waves cannot. c) electromagnetic waves must have a medium in which to travel, but sound waves can travel anywhere. eliminate d) sound waves must bounce off of matter in order to travel while electromagnetic waves do not require matter to be present.