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Atoms and Molecules
Question | Answer |
---|---|
molecule | two or more atoms bonded together |
atom | the basic unit of matter |
matter | anything that has mass and takes up space |
Is helium gas (He) an element or a molecule? | element |
All matter is made up of tiny particles called __. | atoms |
Is ammonia NH3 best described as a molecule or mixture? | molecule |
True or False: A molecule can be made of a single element or many elements. | True |
Which represents a molecule? C, He, O2 | O2 |
A molecule that has at least 2 different types of atoms is a __. | compound |