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Science Voc. Ch. 1
Wades CH. 1 Science Vocab
Question | Answer |
---|---|
particles in an atom's nucleus that are positively charged. | proton |
properties that describe how substances react to form new substances | chemical properties |
properties that can be seen without changing the material | physical properties |
basic kinds of matter | elements |
the number of protons in an atom's nucleus | atomic number |
the smallest part of a substance made from more than one atom that still has all the properties of the substance | molecule |
the smallest particle of an element that has the properties of the element | atom |
negatively charged particle that moves around the nucleus of an atom | electron |
symbols that show the number and kinds of elements in a compound | formula |
substance that can form when acids and bases react | salt |
a combination of two or more elements | compound |
two or more substances combined while keeping their own properties | mixture |
a mixture in which substances are spread out evenly and will not settle | solution |