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Science Chapter 3 Quiz

Terms in this set (13)

__________ suggested atoms where tiny, _______________ particles that could not be further divided
Democritus and indivisible
__________ imagined atoms as hard _________ of different sizes and weights, surrounded by _______ ______________
John Dalton, spheres, and heat envelopes
_____________ made the plum pudding model suggesting ______________ charged electrons embedded in a ____________ substance
Thomson, negatively, and positive
A ___________ _______ produced a visible beam called the _________ _____
Crookes tube and cathode ray
______________'s atomic model had a ____________ and _______________ charged center surrounded by a flat _____ of _________
Nagaoka, massive, positively, ring, and electrons
_______________'s model of the atom had a _____, but ________ positively charged nucleus surrounded by ____________
Rutherford, tiny, massive, and electrons
_______'s atomic model placed __________ in ______ at specific distances from the _________
Bohr, electrons, orbits, and nucleus
the spherical orbits of the Bohr model were replaced with ______
Orbitals
Most naturally occurring carbon atoms have __ neutrons
6
Mass number consists of _________ and __________
Protons and neutrons
To figure out how many neutrons an isotope have, subtract the _______ number from the _____ number
Atomic and mass
isotope notation shows ________ number, average atomic _______, and __________ symbol
Atomic, mass, and chemical
The symbol 2+ indicates that an ion has an excess of two __________ charges
Positive
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