| Question | Answer |
|---|---|
| Anything that has mass and takes up space? | matter |
| What matter is made up of, the building block of matter? | atom |
| what is the central region of an atom? | nucleus |
| what is the region surrounding the central area called? | electron cloud |
| What particles does the nucleus contain? | Protons and neutorns |
| what particles does the electron cloud contain? | electrons |
| The number of protons in the nucleus of an atom of an element? | atomic number |
| What kind of charge does an electron have? | Negatively charged |
| What kind of charge does a neutron have? | uncharged |
| What kind of charge does a proton have? | Positive charge |
| One or more atoms of an element having the same number of protons but different number of neutrons? | isotope |
| An atom that has a charge because it has gained or lost electrons? | Ion |
| What is the modern model of an atom? | electron-cloud model |
| What part of an atom hold the most mass? | the nucleus |
| What type of ion has more protons than electrons? | positive ion |
| A mixture in which substances are unevenly mixed? | heterogeneous mixture |
| A mixture in which 2 or more substances are evenly mixed, but aren't bonded together? | homogeneous mixture |
| Two or more atoms that are held together by chemical bonds and act a s a unit? | molecule |
| Substance made of two or more elements that are chemically joined in a specific combination? | compound |
| Matter with a composition that is always the same? | substance |
| Matter that can vary in composition? | mixture |
| Substance made of only one kind of atom? | element |
| Matter is classified as? | mixture and substance |
| 3 examples of an element? | gold, carbon, and oxygen |
| 3 examples of compounds? | water,carbon dioxide, and sodium chloride |
| What information is found in a compound chemical formula? | chemical symbols, subscripts,and small numbers |
| What is another word for a Homogeneous mixture? | solution |
| What are the parts to a solution? | solute and solvent |
