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Atoms and The Periodic Table Review
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What is the name for group 18 elements?
Noble Gases
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Which types of atoms are poor conductors, dull, and found to the right of the staircase?
nonmetals
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What is the name for group 17 elements?
Halogens
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Fill in the missing information.
BoronAtomic #- 5Atomic Mass- 11# protons- 5# neutrons- 6# electrons- 5
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What is the charge of a neutron?
0 (neutral)
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What is a row on the periodic table called?
period
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Which particles are found in the cloud that surrounds the nucleus?
electrons
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What is the charge of a proton?
+1
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What are the smaller particles called that make up both protons and neutrons?
quarks
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What is the name for the group 1 elements?
Alkaline Metals
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What are valence electrons?
Electrons that are found in the outermost energy level of an atom.
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What is a column on the periodic table called?
group or family
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Which particles are found in the nucleus?
protons and neutrons
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How is the number of protons for an atom determined?
Look at the atomic number on the periodic table.
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Which type of atoms are shiny, good conductors, and found to the left of the staircase?
metals
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What does the group number tell about an atom?
The number of valence electrons present.
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Round the atomic mass of Iron (Fe) to the nearest whole number. 55.845
56
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How is mass number for an atom determined?
number of protons + number of neutrons OR atomic number + number of neutrons
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What is the charge of an electron?
-1
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What is the name for the group 2 elements?
Alkaline Earth Metals
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