click below
click below
Normal Size Small Size show me how
Chapter 2
| Question | Answer |
|---|---|
| Matter | Substance of the universe, has mass and takes up space. |
| Element | Is a pure substance that is distinguished from all other matter by the fact that it cannot be created or broken down by ordinary chemical means. |
| O element symbol | Oxygen. |
| C element symbol | Carbon. |
| H element symbol | Hydrogen. |
| N element symbol | Nitrogen. |
| Ca element symbol | Calcium. |
| Compound | Is a substance composed of two or more elements joined by chemical bonds. |
| Atom | An atom is the smallest quantity of an element that retains the unique properties of that element- smallest of anything that can exist. |
| Proton | Positively charged |
| Neutron | Negatively charged |
| Electron | Guys that spin around the proton and neutron. |