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When atoms GAIN electrons, their charge becomes this.
Negative.
This type of reaction absorbs energy from the surrounding environment.
Endothermic.
This type of reaction releases energy from the system, into the surrounding environment.
Exothermic.
Electrons found in the outermost shell of an atom are called this.
Valence electrons.
These types of covalent bonds share electrons evenly.
When atoms LOSE electons, their charge becomes this.
Positive.
An ion.
Carbon-12 and Carbon-14 have a difference in this sub-atomic particle.
Neutrons.
Plasma
The name given to the horizontal rows on the periodic table.
Period.
Lewis Dot Structures represent these.
Valence Electrons.
DOUBLE JEOPARDY: Which number tells us both the number of protons and electrons in an atom?
Atomic Number.
How many valence electrons do MOST atoms desire to fill their outermost shell?
8
A reversible change from one state to another.
Phase Change
This type of mixture has parts that are noticeably different from each other.
Heterogeneous mixture.
A bond between two non-metals.
Covalent Bond.
These have a fixed composition of atoms and can be separated chemically.
Chemical Compound.
These contain only one type of atom and cannot be separated by physical or chemical means.
Elements.
DOUBLE JEOPARDY: The name of the VERTICAL columns of elements on the periodic table.
Group/Family
These types of bonds do NOT share electrons evenly.
Polar Covalent bonds.
A bond between a metal and a non-metal.
Ionic Bond.
This type of mixture has parts which are evenly distributed, making the mixture appear the same throughout it.
Homogeneous mixture.
The state of matter which occurs at nearly -273 Kelvin (extremely cold).
Bose-Einstein Condensate
The same element but with a different number of neutrons.
Isotope.
The sum of the protons and neutrons tell us this...
Atomic Mass