Atomic Structure
The particles in the nucleus
Protons and neutrons
How is the periodic table MAINLY organized?
By increasing atomic number
Location of atomic radius, electronegativities, and ionization energies.
Table S of Reference Table
Three phases of matter
Solid, Liquid, Gas
Temperature is a measure of this.
Average Kinetic Energy
Location of electrons
What is another word for column? Row?
Group, period
Group number tells us this.
Number of valence electrons
Things we see on a heating or cooling curve.
Solid, liquid, gas. Freezing/melting and boiling/condensation.
Difference between endothermic and exothermic reaction.
Endo - absorb
Exo - release
Earliest model of the atom
Trend of ionization energy down a group and WHY.
Decreases - more shells, easier to remove.
False - only chemically
A phase change is an example of this type of change.
Physical Change.
Entropy is a measure of this.
Randomness / disorder / chaos
Number of electron shells.
Most electronegative atom
Fluorine
Provide an example of a chemical change.
Answers vary.
Kinetic energy increases in what part of the heating curve.
Solid, liquid, or gas
Show a numerical setup to calculate atomic mass:
B-10: 10.0amu, 72%
B-11: 10.9amu, 28%
A.M = (0.72 x 10.0) + ( 0.28 x 10.9)
Trend of atomic radius across a period and WHY.
Decrease because greater atomic pull.
Cause of bright line spectra
Electrons going back to ground state - releasing energy
Phase of matter that has the least entropy.
Solid
Type of energy stored in bonds
Chemical energy