(Full explanation plzz) Which element exhibits the greatest number of different oxidation states?
a) O, b) La, c) Rb, d) Mg, e) N

let that person have a turn to speak : )

i do not get it   at all

shield volcanos are angry and get mad over the smallest things so much that there heads erupt   pahoehoe and a'a lava. a composite volcano is the poller opposite of a shield volcano. its   peaceful thing and knows how to control its emotions.