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Science Ch. 10 L. 2

QuestionAnswer
What is a molecule? A particle that contains more than one atom joined together.
which parttical has no electric charge? neutron
what is an atom? The smallest unit of an element that retains the properties of the element
what particle in the atom is not located within the nucleus? electron
What is a substance that is created by the chemical comination of two or more elements? compound
What famous scientist discovered that the properties of elements went through repeating cycles? Dmitri Mendeleyev
How many Hydrogen atoms are in H2O? 2
What particle has a positive charge? proton
What particle has a negative charge? electron
What is the biggest group of elements on the periodic table? Metals, non metals, or metalloids? metals
What is the chemical symbol for carbon dioxide? CO2
Created by: wiker5
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