1. Periodicity Chapters 6 and 10
Key terms from both chapters and sentences should be in your notebook by Monday.
Outlines should be in your notebook before Winter Break.

2. This is what Mendeleev knew in 1869.+1 +2 +3 +4 -2
Mendeleev
predicted that
eke-silicon and
eke-boron
would be
discovered,
(the atoms
in purple).
They were
discovered soon
after his prediction
was made. 50
years later, Moseley’s
work with X-rays
improved upon the
Periodic Table.
Mendeleev noted patterns in the combining ratios of elements
The Elements Lithium (Li), Sodium (Na), and Potassium (K) all formed oxides in the ratio of two atoms per oxygen atom: R2O
The Elements Beryllium (Be), Magnesium (Mg), and Calcium (Ca) all formed oxides in the ratio of one atom per oxygen atom: RO
Boron (B) and Aluminum (Al) formed R2O3
Carbon (C) and Silicon (Si) formed RO2
Recognizing the patterns of combining ratios or "valency", Mendeleev created a table organized by placing elements with similar combining ratios in the same group.   He arranged the elements within a group in order of their atomic mass. 

3.
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Periodic Law
The properties of the elements are a periodic function of their atomic numbers.
Elements with similar electron configurations are in the same column.
These elements have similar chemical behavior.
The way the behavior varies is predictable.
A comprehensive list of resources about periodic tables

4. Transition Metals
Alkaline Earth Metals
Inner Transition Metals
Alkali Metals

5. Alkali Metals
end in s1
react with water to form hydrogen gas and a hydroxide base.
react with salts to form other salts.
conduct heat and electricity
gives electrons in chemical reactions.
shiny, malleable, ductile,… in the uncombined form.

6. Alkaline Earth Metals end in s2
may react with water to form hydrogen gas and a hydroxide base.
Reacts with acid to form hydrogen gas and a salt.
react with salts to form other salts.
conduct heat and electricity
gives electrons in chemical reactions
shiny, malleable, ductile,… in the uncombined form.

7. Transition Metals end in s2dn
may react with acid to form hydrogen gas and a salt.
react with salts to form other salts.
conduct heat and electricity
shiny, malleable, ductile,… in the uncombined form.
gives electrons in chemical reactions
Many of these make colorful compounds.

8. Inner Transition Metals
end in s2fn
may react with acid to form hydrogen gas and a salt.
may react with salts to form other salts.
conduct heat and electricity
shiny, malleable, ductile,… in the uncombined form.
gives electrons during chemical reactions.
Many of these (if not all) are radioactive.

9. Metalloids end in s2pn may react with salts to form other salts.
may or may not conduct heat and electricity
may or may not be shiny, malleable, ductile, dull, brittle,… in the uncombined form.
Many of these are semiconductors and are used in computers.
SiO2 is sand, glass, super-ball, breast implant – depending on how it is processed.

10. Nonmetals end in s2pn may react with salts to form other salts.
do not conduct heat and electricity
may be dull, brittle,… in the uncombined form.
May react by sharing electrons or taking electrons.
May be solid, liquid, or gas.

11. Noble Gases end in s2p6 are gases
do not generally engage in chemical reactions.

12. You will present your topic in three days. This is worth 100 points
Each Group will work with one periodic property. It will be your job to explain your topic so your classmates feel comfortable with it.
Page 251  255: Atomic and ionic radii
P258  262:
Ionization energy and reaction tendencies
P 255  257:
Electron configuration and its relation to oxidation numbers (also p141155)
P 263:
Electron affinity and reaction tendencies.
What is it?
Define Concept
Illustrate Concept
Apply Concept.
How can I picture what you describe?
What affect does this have?