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15 Cards in this Set
- Front
- Back
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Why cant we see atoms in the usual sense? |
Because of how small they are |
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What device can be used to generate images of atoms |
Scanning probe microscope |
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Atoms are of mostly_____ space |
Empty |
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A _______ __________ can be used to represent a very small or very large physical object |
Physical model |
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A _______ ________ is a represenation of a system that helps us predict how the system behaves |
Conceptual model |
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Which type of model best describes the atom |
Conceptual model |
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The nucleus of the atom contains positvely charged subtomic particals called what? |
Protons |
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The ______ ______ is the number of protons in the atoms nucleus |
Atomic number |
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The periodic table lists the elements in order of _____ atomic numbers |
Increasing |
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The added mass of an atom is due to the subtomic particle found in the nucleus, the ______ |
Neutron |
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The neutron was detected by _______ _________ |
James chadwick |
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Atoms of the same element that contain diff numbers of neutrons are________ of each other |
Isotopes |
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The _______ _________ is the total number of protons plus neutrons in the atom |
Mass number |
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The total mass of an atom is called its _______ ________ |
Atomic mass |
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The atomic mass unit is slightly less than the mass of a single_____ |
Proton |
