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Chem Vocab 08/20/15
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Published on Nov 20, 2015
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1.
Chem Vocab 08/20/15
Photo by
Raymond Bryson
2.
Protons +
1/3 subatomic particle
Positively charged
Mass= 1amu
3.
Neutrons
negative charge
found outside the nucleus
1amu
1/3 subatomic particles
4.
Electrons
negative charge
1/3 subatomic particles
5.
Isotope
same element
same # of protons and electrons
Different # of neutrons and different mass
0 or insignificant mass
6.
Isotope
same element
same # of protons and electrons
Different # of neutrons and different mass
0 or insignificant mass
7.
Period
Row going across of the periodic table
8.
Groups
Columns going up and down the periodic table
9.
Chemical Property
Characteristic of a substance that indicates whether it can undergo a chemical change.
10.
Atomic number
Number of protons and electrons in an atom
11.
Mass number
The sum of the number of protons and neutrons.
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