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10 Cards in this Set
- Front
- Back
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What is precision
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degree of exactness in a measurement
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what is accuracy?
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how well a measurement reproduces a known value
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how many significant figures in 4.04050?
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6
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What does the Principal Quantum number mean?
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energy level or size of orbital
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What is the law of multiple proportions?
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the mass ratio for one of the elements that combines with a fixed mass of another element can be expressed in smallest whole number ratios
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Are the following soluble?
KOH, KCL, BAOH2 |
yes
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wHAT GROUPS CONTAIN ORIBITAL "S"?
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groups 1 and 2
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Why does Ionization Energy decrease DOWN a group?
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-larger atoms
-e- are farther away from nucleus -less electrostatic attraction between +/- |
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What is electromagnetic radiation?
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radiant energy that exhibits wavelike behvior and travels through space at the speed of light in a vacuum
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What is a photon?
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a "particle" of electromagnetic radiation w/ 0 mass and a quantum of energy
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