Multiple Choice
Which of the following is an allotrope of carbon?
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2. Atoms & Elements
Periodic Table: Elemental Forms
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Which of the following elements occurs naturally as diatomic molecules?
A
Oxygen
B
Carbon
C
Sulfur
D
Neon
Verified step by step guidance1
Understand that some elements naturally exist as diatomic molecules, meaning two atoms of the same element are bonded together in their natural form.
Recall the common diatomic elements, often remembered by the mnemonic "BrINClHOF" which stands for Bromine, Iodine, Nitrogen, Chlorine, Hydrogen, Oxygen, and Fluorine.
Analyze each option: Carbon typically exists as a solid network of atoms, Sulfur usually forms cyclic molecules (like S8), and Neon is a noble gas that exists as single atoms.
Recognize that Oxygen naturally occurs as O\_2, a diatomic molecule, in the atmosphere.
Conclude that among the given options, Oxygen is the element that naturally occurs as diatomic molecules.
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