1. Subatomic particles
Particle
symbol
charge
location
mass
Proton
Neutron
Electron
___________: # neutrons vary, _________: # electrons vary
________________(Z) : tells #protons and # electrons
________________(A): tells mass of protons + neutrons
________________-element with 9 electrons
________________-element with A=23
________________-element with 18 protons
________________-element with 22 neutrons
________________-element with Z=16
All elements have masses relative to: _____________.
The atomic mass has a decimal because of ____________.

2. Periodic Table ______________ - organized periodic table
Periodic table is CURRENTLY organized by:
_____________ AND ________________
Names for Rows  : Names for Columns :
I I.
II II.
III III.
IV.
Label the periodic table:
-metals, non-metals
-metalloids, semi-metals, semi-conductors
-alkali metals
-alkaline earth metals
-noble gases
-halogen family
-oxygen family
-nitrogen family
-transition metals
-coinage family
-lanthanides
-actinides

3. Periodic Table cont… Trends
________________, positive ion, metals, left of zig-zag line
________________, negative ion, non-metals, right of zig-zag line
________________ - determines the flame color of a substance
Trends
DRAW Atom Radius (aka…size):
Left to right on p.t. () top to bottom on p.t. ()
Define Trends:
_____________ - energy to remove an electron (metals)
_____________- energy to attract electrons (non-metals)
_____________- ability to attract an electron (non-metals)
*Note: The 3 trends above are opposite of _________.
*Reactivity Trend Note: Big metals are __ reactive,
Small non-metals are __ reactive.

4. Periodic Table + Trends
_____________ the alkaline earth metal with 3 shells
_____________ halogen with 2 electron clouds
_____________ the element in period 4 with 8 valence electrons
_____________ the element in group 2 with 3 energy levels
_____________ the largest element in the alkali family
_____________ the largest element in row 3
Why is argon small for it’s row?
 __________ to attract to the ______________ in the nucleus
Why is sodium large for it’s row?
 __________ to attract to the _____________ in the nucleus
Why is cesium large for it’s column?
 __________ means less attraction of valence electrons to
_________ in the nucleus because of ___________
Why is lithium small for it’s column?
 __________ means more attraction of valence electrons to
_________ in the nucleus because of  _________
______________ noble gas with the greatest electronegativity
______________ alkali with the lowest electron affinity
______________ largest coinage element