An element is a substance made from atoms with the same number of protons in the nucleus.
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What is an atom?
An atom is the smallest particle of an element that still has its chemical properties
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What is a molecule?
A molecule consists of two or more atoms chemically joined together. Most elements that are gases at room temperature exist as molecules with two atoms.
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What is a compound?
A compound consists of two or more different elements chemically joined together.
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An ion is represented as Na+. Explain what this shows.
A compound cons
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Other cards in this set
Card 2
Front
An atom is the smallest particle of an element that still has its chemical properties
Back
What is an atom?
Card 3
Front
A molecule consists of two or more atoms chemically joined together. Most elements that are gases at room temperature exist as molecules with two atoms.
Back
Card 4
Front
A compound consists of two or more different elements chemically joined together.
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