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Week 7 Vocabulary
Physical Science
10
Science
9th Grade
10/20/2015

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Term
Isotope
Definition
Atoms of the same element but different mass numbers.
Term
Average Atomic Mass
Definition
Weighted Average of all isotopes of a particular element.
Term
Neutrons
Definition
Decides the mass of the atom, affects the isotopes of elements.
Term
Positive Charge
Definition
More protons than electrons, elements found on the leftside of the periodic table
Term
Neutral Charge
Definition
Same amount of protons and electrons
Term
Negative Charge
Definition
More electrons than protons, elements found on the right side of the periodic table.
Term
Ion
Definition
An atom which the total number of electrons is not equal to the total number of protons, giving the atom a net postive or negative electrical charge.
Term
Anion
Definition
A negatively charged ion
Term
cation
Definition
A positively charged ion
Term
Noble Gas Configuration
Definition
Atoms that achieve a complete outer shell (or look of a noble gas) by bonding with other atoms.
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