Which of the following groups consists only of elements that exist as diatomic molecules at room temperature and pressure?Group of answer choicesF, Cl, O, N, IAr, He, H, O, ClP, He, H, Cl, Ne, FBr, N, H, S, OLi, B, I, Br, Kr, N
Question
Which of the following groups consists only of elements that exist as diatomic molecules at room temperature and pressure?Group of answer choicesF, Cl, O, N, IAr, He, H, O, ClP, He, H, Cl, Ne, FBr, N, H, S, OLi, B, I, Br, Kr, N
Solution
The group that consists only of elements that exist as diatomic molecules at room temperature and pressure is F, Cl, O, N, I.
Here's why:
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Diatomic molecules are molecules composed of only two atoms, of the same or different chemical elements.
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The seven elements that exist as diatomic molecules are hydrogen (H2), nitrogen (N2), oxygen (O2), fluorine (F2), chlorine (Cl2), iodine (I2), and bromine (Br2).
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Looking at the groups provided, the only group that consists only of elements that exist as diatomic molecules is F, Cl, O, N, I.
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The other groups contain elements like Ar, He, P, Ne, S, Li, B, and Kr, which do not exist as diatomic molecules at room temperature and pressure.
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