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integrated science 9
atom
| Question | Answer |
|---|---|
| Model | a familiar idea used to explain unfamiliar facts observed in nature |
| Theory | an explanation of observable facts and phenomena |
| who is democritus? | he proposed the existence of an atom |
| who is aristole? | he rejected the idea of the atom |
| who is dimitri mendeleev? | he arranged the periodic table according to increasing atomic mass |
| who is henry moseley? | he discovered that each element has a unique atomic number |
| nucleons | particles in the nucleus of an atom |
| atomic number | number of protons in the nucleus of an atom |
| isotope | atoms of an element that have different number of neutrons |
| mass number | total number of protons and neutrons in an atom |
| who proposed atoms are indivisible? | dalton |
| who said atoms can be cut continually? | aristole |
| who proposed the existence of an atom? | democritus |
| daltons theory | atoms of the same element are alike |
| yes or no, a theory is an explanation of observable facts and phenomena | yes |
| from the gold foil experiment it was concluded that atoms are empty space, yes or no | yes |
| what is the periodic table? | elements arranged by there atomic number |
| how do atoms interact with each other? | electrically |
| what is a neutral atom? | when the number of protons and neutrons are equal |
| did aristole support the existence of the atom? | nope |
| did the gold foil experiment conclude that atoms are mostly empty space? | yes |
| what are atoms made up of? | electrons, protons, and neutrons |
| do atoms unite in small whole number ratios? | yes |
| in rutherfords gold foil experiment did some particles bounce back? | yes |
| what do noble gases have? | they have a full energy level |