classifying elements Word Scramble
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Question | Answer |
proton | a particle in the space inside the nucleus of an atom that carries one unit of positive electric charge. |
molecule | a particle that contains two or more atoms joined together . |
nonmetals | a group of elements that are poor condutors of heat and eleerrtreety. |
noble gasses | the nonmetallic elements helium , neon, arogen krytron xenon radon. |
periodic table | a chart that shows all of the known elements and their propertis. |
atom number | the number that protons in a single atom elelments. |
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