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April 24 Test
Review
20
Science
6th Grade
04/19/2012
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Term
Atomic Number
 Definition
Number of Protons
Term
Atomic Mass
 Definition
Protons + Neutrons
Term
Neutrons
 Definition
Negative Charge

Inside the Nucleus

Mass - Protons
Term
Protons
 Definition
Positive Charge

Inside the Nucleus
Term
Electrons
 Definition
Negative Charge

Outside the Nucleus
Term
Nucleus
 Definition
Center of the Atom
Term
Group/Family
 Definition
Up and down Columns (1-18)

Have similar Characteristics
Term
PT is arranged
 Definition
By atomic number
Term
Shell/Ring Names
 Definition
K, L, M, N, O, P, Q
Term
First shell holds
 Definition
2 electrons
Term
2nd shell holds
 Definition
8 electrons
Term
3rd shell holds
 Definition
18 electrons
Term
Luster
 Definition
Shiny
Term
Malleable
 Definition
Able to be hammered into thin sheets
Term
Ductile
 Definition
Able to be drawn out into thin wires
Term
Metals are
 Definition
Malleable, ductile, have luster
Term
Nonmetals are
 Definition
Brittle
Term
Metalloids
 Definition
Have properties of metals and nonmetals
Term
Noble gases
 Definition
Group 18. Don't bond.
Term
Valence electrons
 Definition
Electrons in the outermost shell
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