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makkiz [27]
3 years ago
13

Which of these elements is a noble gas? A. hydrogen (H) B. barium (Ba) C. nitrogen (N) D. krypton (Kr) E. bromine (B

Biology
1 answer:
OLEGan [10]3 years ago
3 0

Answer:

the answer is krypton

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Option (3).

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