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Chemistry Target 1
Question | Answer |
---|---|
atom | the smallest particle of an element |
element | a substance that cannot be broken down into two or more substances |
molecule | a particle made of two or more atoms bonded together |
chemical bond | a force that holds atoms together |
compound | a substance formed of two or more elements chemically combined |
Can all atoms in a molecule be the same? | yes - they can be the same or different |
Can all atoms in a compound be the same? | no - compounds are formed from two or more different elements that are chemically combined |
subscript | The number that shows how many atoms (bonded) are present in a molecule |
coefficient | The number that tells how many atoms (not bonded) or molecules are present |
pure substance | a substance made of only one type of matter and has definite properties |
mixture | consists of two or more substances that are not chemically combined |