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AtomsAtomsAtom Atom
StructureStructurePatternsPatterns Set-UpSet-Up
General General InfoInfo
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What are the three parts of the atom?
Answer: Protons, Neutrons, Electrons
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What is the center of the atom called?
Answer: Nucleous
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What parts are found in the center of the atom?
Answer: Protons, Neutrons
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What parts orbit the outside of the atom?
Answer: Electrons
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How can you tell how many protons are in an atom?
Answer: The atomic number
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How do you find the number of neutrons?
Answer: Atomic weight – Atomic number
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How can you tell how many electrons are in an atom?
Answer: Same as protons/atomic number
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What is the rule for placing electrons in the first 3 shells? (for the first 18 elements)
Answer: 2-8-8
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On which side of the table are the most reactive elements found? (left or right)
Answer: Left
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Elements that are close to each other on the table share common _________.
Answer: Properties
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How can you tell how many electron shells an atom will have?
Answer: Period number
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All elements in a group have the same number of electrons in their _______ shell.
Answer: Valence/outer
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Horizontal rows are called________.
Answer: Periods
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Vertical columns are called _________.
Answer: Groups or families
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Most elements are solid, liquid, or gas?
Answer: solid
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The three main types or categories of elements are _________. (NOT solid, liquid, gas)
Answer: Metals, Non-Metals, Metalloids
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This category of elements is found to the left of the zigzag line and are shiny, hard, malleable, and ductile.
Answer: Metals
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This category of elements are dull and brittle.
Answer: Non-Metals
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The one or two letter abbreviation for an elements name is its ________.
Answer: Symbol
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How many NATURALLY occurring elements are there?
Answer: 90
Electron Shells
What is the maximum number of electron shells an atom can have?
7
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