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Chemistry of li
science test
| Question | Answer |
|---|---|
| What is matter | anything that has mass and takes up space |
| what is matter made up of | atoms |
| what keeps matter together? | energy |
| What are the 3 forms of matter | solid,liquid and gas. |
| The parts of the atom | nucleus,matter,energy and protons |
| what part of the atom is outside the nucleus? | electrons |
| what part of the atom are inside the the nucleus | protons and neutrons |
| what changes do each parts of the atom have? | positive and negative changs |
| what is an element | made up only one kid of atom |
| what is a compound? | two or more elemeants that combine abd change properties . |
| what is a molecule? | a group of atoms held together by the energy of chemical bonds. |