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Related Flashcards
Cards In This Set
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The basic unit of all matter. The smallest particle of an element.
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Atom
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Positive charged particles found in the nucleus of an atom
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Protons
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The central part of an atom
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Nucleus
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A particle found in the neucleus packed tightly together with protons
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Neutrons
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Negative charged particles that travel around the nucleus
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Electrons
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The space between the nucleus and the electrons is mostly...
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Empty
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Matter that is made of only one kind of atom
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Element
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How many different elements are there?
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106
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How many elements occur naturally on earth?
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92
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What do scientists use to represent elements?
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Symbols
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Made of two of more atoms?
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Molecules
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Atoms of different elements combined. Sometimes molecules of the same element combined.
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Compounds
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Give one example of a combined elements?
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Water (Hydrogen + Oxygen)
Symbol H2O
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Name the 1st ten elements?
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Hydrogen, Helium, Lithium, Berylium, Boron, Carbon, Nitrogen, Oxygen, Flourine, Neon
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