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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 |