Which of these elements is a noble gas?

asked Mar 17, 2020 34.1k views

1 vote

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5 votes

Answer:

krypton (kr)

Step-by-step explanation:

plato

Mustansir answered Mar 19, 2020

5.3k points

5 votes

Answer:

The elements are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), radon (Rn), and oganesson (Og).

Step-by-step explanation:

Lonecat answered Mar 23, 2020

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