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Science test 10/25
Section 3&4
Question | Answer |
---|---|
The reaction of one or more substances to produce a new substance with different properties | Chemical reaction |
A substance formed during a chemical reaction | Product |
A substance going into a chemical reaction | Reactant |
The number of protons contained in an atom of an element | Atomic number |
A pure substance made of only one type of atom | Element |
A column in the periodic table | Group |
A row in the periodic table | Period |
A chart that shows all the elements arranged by atomic number and by properties | Periodic table of the elements |