Definitions

Important definitions to understand atoms, molecules, and ions
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Questions #: 13
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Pass Score: 80.0%
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______ is the smallest piece of an element that maintains the identity of that element

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The concept that atoms play a fundamental role in chemistry is called modern _______ theory

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A tiny subatomic particle with a negative charge is called _______

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A subatomic particle with a positive charge is called _______

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A subatomic particle with no charge is called _________

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A molecule with only two atoms is called _______ molecules

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The model of an atom that has the protons and neutrons in a central nucleus with the electrons in orbit about the nucleus

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The center of an atom that contains protons and neutrons is called _______

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The number of protons in an atom is called _________

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Atoms of the same element that have different numbers of neutrons are called __________

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The sum of the number of protons and neutrons in a nucleus is called __________ of the isotope

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An _______ ________ is one- or two-letter representation of the name of an element

two words are missing

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The elements are grouped together in a special chart called the _______ ________

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sin cos tan
sin-1 cos-1 tan-1 π e
xy x3 x2 ex 10x
y√x 3√x √x ln log
( ) 1/x % n!
7 8 9 + MS
4 5 6 M+
1 2 3 × M-
0 . EXP ÷ MR
± RND C = MC

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