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Groups & Periods & Classification Atom Basics Atomic History Calculations Metal or Not? 1 pt 1 pt 1 pt 1 pt 1 pt 2 pt 2 pt 2 pt 2 pt 2 pt 3 pt 3 pt 3 pt 3 pt 3 pt 4 pt 4 pt 4 pt 4 pt 4 pt 5 pt 5 pt 5 pt 5 pt 5 pt
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Is also called a family
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What are groups?
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Rows across the periodic table
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What are periods?
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Most reactive group of metals
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What are alkali metals?
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There are 18 of them and they have common properties within
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What are groups?
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The only classification that has only one element in it
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What is Carbon?
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The positively charged particle in the nucleus of an atom
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What is the proton?
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The uncharged particle in the nucleus of an atom
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What is the Neutron?
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Orbits the nucleus of an atom in a cloud
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What is an electron?
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What the majority of an atom is
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What is empty space?
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The atomic particle with the smallest mass
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What is the electron?
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The original inventor of the periodic table
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Who is Mendeleev?
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He shot alpha particles at gold to disprove the plum pudding model
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Who is Rutherford?
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A student of Rutherford who created the planetary model of the atom still used today
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Who is Dalton?
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“Science” didn’t exist in early B.C. so it was considered this
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What is philosophy?
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Mendeleev’s periodic table was arranged by this; unlike the modern periodic table
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What is Atom Mass?
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Number that must be rounded before using to calculate neutrons
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What is Atomic Mass?
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The number of neutron in Aluminum; which has an atomic mass of 26
The number of neutron in Aluminum; which has an atomic mass of and a Atomic Number of 13
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What is 14?
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The Atomic Mass of Helium; which as 2 neutrons, 2 electrons, and 2 protons
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What is 4?
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The reason Atomic Masses are usually decimals instead of whole numbers
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What is the average of all naturally existing isotopes?
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The element with 1 proton in the nucleus
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What is Hydrogen?
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A property of metals that means to be workable with a hammer
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What is malleable?
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A liquid metal
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What is Mercury?
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Has properties of both metals and nonmetals
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What are metaloids?
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An element with electrical conductivity but is also brittle; found in pencil lead
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What is Carbon?
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The group of nonmetals that are not reactive
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What are Noble Gases?
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