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


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