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Semester I Review

Teacher: Mr Headlee
Across
Covalent compounds
A free electron
Heats up
Ionic solids
1/1000
Nitrogen trihydride
Larger than sodium
Length cubed
Line spectrum
One reactant
Grams per cubic centimeter
High kinetic energy
Force
Carbon dioxide
Result of electron transfer
Down
Mass of 25 - 13 neutrons
Means 4
Arranged elements by Z
Sign of chemical change
Oxygen's second shell
Most of the earth's matter
A noble gas
The more digits the better
Spring scale
Ng is unit of ?
L x w x h
Always polar
Share and share alike
Molecule of a compound with atom of an element
Very high melting points