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Chemistry terms
science
Question | Answer |
---|---|
Combination of two or more DIFFERENT kinds of atoms | compound |
Center of an atom | Nucleus |
Two or more substances physically combined | mixture |
Temperature when liquid becomes solid | freezing point |
No new substance is produced | physical change |
Can't be separated by chemical | element |
No definite shape or volume | Gas |
Temperature when liquid becomes gas | boiling point |
Positively charged subatomic particle | proton |
Made of protons and neutrons | nucleus |
Two or more atoms chemically combined | molecule |
Mass per unit volume | density |
anything with mass that takes up space | matter |
subatomic particle with no charge | neutron |
produces new substance with different properties | chemical change |
definite volume, no definite shape | liquid |
negatively charged particle | electron |
reactivity is an example | chemical property |
physical description of a substance | physical property |
basic building block of matter | atom |
space in an atom in which electrons are | electron cloud |
amount of space an object takes up | volume |
amount of matter in an object | mass |