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classifying elements
vocabulary
Term | Definition |
---|---|
proton | proton are located in the nucleus at the center of the atom |
electron | electron are located outside the nucleus |
atomic number | is the number of protons In an atom |
molecule | molecule is a particle that contains more than one atom joined together |
metals | metal is a substance that conducts heat and electricity well |
nonmetals | is an element that is a poor conductor of heat and electricity |
metalloids | are a very small group of elements that have some properties of the metals |