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Chemistry

Answered

At STP or standard conditions, which list of elements contains a solid, a liquid, and a gas?
A. Hafnium, Mercury, and Helium
B. Barium, Bromine, and Boron
C. Chromium, Chlorine, and Carbon
D. Selenium, Tin, and Strontium

Answer :

jakeagustin868 jakeagustin868

Today at 5:53 PM

Answer:

B.hafnium, mercury,helium

Explanation:

because the atomic number of hafnium is 72is a solid, mercury is a gas the atomic number is 80,

helium is a gas the atomic number is 2

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