Multiple Choice
Which element is commonly used in skincare products and cosmetics as to provide a white pigment and help block UV light?
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5. Molecules and Compounds
Periodic Table: Elemental Forms (Simplified)
Multiple Choice
Diamond and graphite are different allotropes of which element?
A
Silicon
B
Oxygen
C
Calcium
D
Carbon
Verified step by step guidance1
Understand the term 'allotropes': Allotropes are different structural forms of the same element, where atoms are bonded together in different ways, resulting in distinct physical properties.
Identify the element in question: The problem mentions diamond and graphite, which are well-known allotropes.
Recall the element that forms both diamond and graphite: Both diamond and graphite are allotropes of the element carbon.
Review the options given: Silicon, Oxygen, Calcium, and Carbon. Since diamond and graphite are forms of carbon, the correct element is carbon.
Conclude that diamond and graphite are different allotropes of carbon, not the other elements listed.
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