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Stack #2046367
Question | Answer |
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A particle in the space inside the nucleus of an atom that carries one unit of positive electric charge | Proton |
A particle in the space outside the nucleus of an atom that carries one unit of negative electric charge | electron |
The number of protons in a single atom of an element | atomic number |
A practical that contains two or more atoms joined together | molecule |
A substance that conducts heat and electricity | metal |
The nonmetallic elements helium neon argon krypton xenon and radon | noble gases |
A small group of elements with some properties of both metals and nonmetals | metalloid |
A chart that shows all of the known elements and their properties | periodic table |