8. What atom is a noble gas in group 18, row 4? A. Ar B. Kr C. Ne D. Rn

asked Feb 22, 2020 118k views

2 votes

8. What atom is a noble gas in group 18, row 4?

A. Ar
B. Kr
C. Ne
D. Rn

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6 votes

Answer:

Step-by-step explanation:

Shalane answered Feb 23, 2020

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4 votes

Answer:

the answer is B: Kr

Step-by-step explanation:

just FYI...I inserted the chart as well

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