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classifyng elements
Vocabulary
| Term | Definition |
|---|---|
| proton | is the center of the atom |
| electron | goes around the atom |
| atomic number | number of protons in a atom |
| molecule | a particle that has more than one atom joined |
| metals | a substance that conducts heat and electricity well |
| nonmetals | a substance that conducts heat and electricity poorly |
| noble gases | helium, neon, argon, krypton, xenon, and radon |
| metalloids | small group of elements that have a bit of metal |
| periotic table | arranges all known elements |