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science test #2

chemistry

QuestionAnswer
Element made of one kind of atom. It can't be broken down during a chemical reaction. It combines with other elements to form compounds.
Symbol the abbreviation for the element. Always a capital letter, or a capital and a lower case.
Atomic mass decimal number below the symbol. It is the mass of the protons and neutrons in an element
Atomic number located above the symbol Tells the number of protons in the nucleus of an atom.
Period vertical column of elements on the periodic tables. These element have similar properties.
Mass number number of protons and neutrons in the nucleus of an atom. It is the atomic mass rounded to the nearest whole number
To determine the number of protons. look at the atomic number
To determine the number of electrons. same as the number of protons
To determine the number of neutrons take the atomic mass, and round to the nearest whole number . This gives you the mass number. Take the mass number and subtract the atomic number.
Carbon C
Fluorine F
Sodium Na
Magnesium Mg
Silicon Si
Phosphorus P
Sulfur S
Potassium K
Calcium Ca
Titanium Ti
Iron Fe
Copper Cu
Silver Ag
Tin Sn
Xenon Xe
Platinum Pt
Gold Au
Lead Pb
Plutonium Pu
Created by: Partaina.20
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