history of periodic table

3. What is the PERIODIC TABLE?What is the PERIODIC TABLE?
o Shows all knownShows all known
elements in theelements in the
universe.universe.
o
o Organizes the elementsOrganizes the elements
by chemical properties.by chemical properties.

6. I am Dmitri Mendeleev!I am Dmitri Mendeleev!
I made the PERIODIC TABLE !I made the PERIODIC TABLE !

8. How do you read theHow do you read the
PERIODIC TABLE?PERIODIC TABLE?

9. What is the ATOMIC NUMBER?What is the ATOMIC NUMBER?
o The number of protonsThe number of protons
found in the nucleusfound in the nucleus
of an atomof an atom
OrOr
o The number ofThe number of
electrons surroundingelectrons surrounding
the nucleus of anthe nucleus of an
atom.atom.

10. What is the SYMBOL?What is the SYMBOL?
o An abbreviation ofAn abbreviation of
the element name.the element name.

11. What is the ATOMIC WEIGHT?What is the ATOMIC WEIGHT?
o The number of protonsThe number of protons
and neutrons in theand neutrons in the
nucleus of an atom.nucleus of an atom.

12. How do I find the number of protons,How do I find the number of protons,
electrons, and neutrons in an elementelectrons, and neutrons in an element
using the periodic table?using the periodic table?
o # of PROTONS# of PROTONS = ATOMIC NUMBER= ATOMIC NUMBER
o
o # of ELECTRONS# of ELECTRONS = ATOMIC NUMBER= ATOMIC NUMBER
o
o # of NEUTRONS# of NEUTRONS = ATOMIC _ ATOMIC= ATOMIC _ ATOMIC
WEIGHTWEIGHT NUMBERNUMBER

14. Now you are almost as smart as INow you are almost as smart as I
am!am!
But not as handsome!But not as handsome!
Man, I look GOOD!Man, I look GOOD!

29. Elements, Compounds, andElements, Compounds, and
MixturesMixtures

30. What is an ELEMENT?What is an ELEMENT?
o A substanceA substance
composed of acomposed of a
single kind ofsingle kind of
atom.atom.
o
o Cannot be brokenCannot be broken
down into anotherdown into another
substance bysubstance by
chemical orchemical or
physical means.physical means.

31. What is a COMPOUND?What is a COMPOUND?
o A substance inA substance in
which two orwhich two or
more differentmore different
elements areelements are
CHEMICALLYCHEMICALLY
bonded together.bonded together.

32. What is a MIXTURE?What is a MIXTURE?
o Two or moreTwo or more
substances thatsubstances that
are mixedare mixed
together but aretogether but are
NOT chemicallyNOT chemically
bonded.bonded.

33. Element, Compound or Mixture?Element, Compound or Mixture?

34. Element, Compound or Mixture?Element, Compound or Mixture?

35. Element, Compound or Mixture?Element, Compound or Mixture?

36. Element, Compound or Mixture?Element, Compound or Mixture?

37. Element, Compound or Mixture?Element, Compound or Mixture?

38. Element, Compound or Mixture?Element, Compound or Mixture?

39. You are still not as handsome asYou are still not as handsome as
the great Mendeleev!the great Mendeleev!
I am working this beard!I am working this beard!
Man, I look GOOD!Man, I look GOOD!