Answers revealed in the comments.
GAME 1
In addition to hydrogen, nitrogen, and oxygen, there are four elements whose second-to-last letter is “E”. Name three of those four elements.
GAME 2
Other than Hispaniola and Cuba, there are four islands located entirely in the western hemisphere that have a population of at least 2 million. Name three of those four islands.
hebspeaks 
Game one answer:
Nickel
Copper
Silver
Tungsten
GAME 2 answers:
Long Island
Ireland
Puerto Rico
Jamaica