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Java Games: Flashcards, matching, concentration, and word search. |
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| what is the root of the word biology? | bio meaning "life" and logos meaning "knowledge" |
| what is chemistry? | the study of composition, structure, and properties of the elements |
| what is an element? | matter that contains only 1 kind of atom |
| what is matter? | anything that has mass and volume |
| what is an atom? | the smallest particle of matter |
| what makes up an atom? | protons, neutrons, and electrons |
| what are protons? | positively charged, # protons= # electrons in neutral atom, and # protons for an element can never change,found in nucleus, and part of mass |
| what are neutrons? | no charge, found in nucleus, part of mass,#of neutrons can change.if # changes, the atomic mass changes and the atom becomes an isotope. |
| what are electrons? | negatively charged, orbit around nucleus in energy levels, have no mass, # electrons in a neutral atom=# of protons. # of electrons can change, if the # changes the atom becomes charged forming an ion. |
| what is a neutral atom? | atom that has no charge, has same # of protons as electrons, neutral atoms are not stable, and will form bonds with other atoms and in the process will form ions. |
| what is an ion? | an ion is an atom that has a charge (+ or -). an atom whose # f lctns has changd |
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