Answer
This describes a nonmetal.
Work Step by Step
Metals are not gases at room temperature. Defined the opposite way, gases at room temperature are not metals.
Chemistry: An Introduction to General, Organic, and Biological Chemistry (12th Edition)
by Timberlake, Karen C.
Published by
Prentice Hall
ISBN 10:
0321908449
ISBN 13:
978-0-32190-844-5
Chapter 4 - Section 4.2 - The Periodic Table - Questions and Problems - Page 105: 4.13d
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