Atomic Theory: Question Preview (ID: 28776)


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Rutherford discovered the nucleus by shooting positive __________ particles through thin ______ foil.
a) beta, aluminum b) alpha, aluminum c) beta, gold d) alpha, gold
Which law states that mass cannot be created or destroyed?
a) Law of Definite Proportions b) Law of Multiple Proportions c) Law of Conservation of Mass d) Law of Multiple Proportions
This law states that compunds exist in the same proportion by mass, regardless of size or source.
a) Law of Conservation of Mass b) Law of Multiple Proportions c) Law of Definite Proportions d) Law of Thermodynamics
This law states that different compounds of the same two elements always combine in ratios of small whole numbers.
a) Law of Definite Proportions b) Law of Conservation of Mass c) Law of Multiple Proportions d) Law and Order
This scientist came up with the plum pudding model of the atom
a) Bohr b) Thomson c) Rutherford d) Millikan
The plum pudding model suggested the atom was a solid mass of ________ matter, with bits of _________________particles mixed in here and there.
a) negative, positive b) neutral, negative c) positive, negative d) dark, anitmatter
Mendeleev devoloped
a) modern atomic theory b) the periodic table c) a better scale for measuring mass d) the law of conservation of mass
Rutherford discovered the
a) nucleus b) neutron c) electron d) quark
To calculate neutrons, you need to
a) subtract the atomic mass from the atomic number b) add the mass and prtons together c) add the nuetron number to the protons, but then subtract electrons d) subtract the atomic number from the mass number
The isotope with 1 proton and 2 neutrons is called
a) protium b) deuterium c) tritium d) trifecta
Oxygen has _____ protons
a) 8 b) 6 c) 4 d) 12
Dalton's theory agreed with modern atomic theory, EXCEPT
a) Dalton said all matter was made from atoms, modern theory does not b) Dalton said atoms could rearrange to form compounds, modern theory does not c) Dalton said atoms combine in whole number ratios to form coumpounds, modern theory does not d) Dalton said atoms could not be subdivided, modern theory does not
Democritus called tiny bits of matter
a) molecules b) atoms c) compounds d) fire
Which of the following did Aristotle NOT say was a matter category
a) Earth b) Fire c) Blood d) Water
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