select the correct answer. which of these elements is a noble gas? a. hydrogen (h) b. barium (ba) c…

select the correct answer. which of these elements is a noble gas? a. hydrogen (h) b. barium (ba) c. nitrogen (n) d. krypton (kr) e. bromine (br)

select the correct answer. which of these elements is a noble gas? a. hydrogen (h) b. barium (ba) c. nitrogen (n) d. krypton (kr) e. bromine (br)

Answer

Brief Explanations:

Noble gases are in Group 18 of the periodic - table. Krypton is in Group 18. Hydrogen is in Group 1, barium in Group 2, nitrogen in Group 15, and bromine in Group 17.

Answer:

D. krypton (Kr)