Periodic Table
a)Everything in the world is made up of
elements
b)Invented by: Dimitri Mendeleeve
c)There are a total of 111 known elements
The Transition Elements
a)On the periodic table located in the
middle
b)Strapping, robust metals
Iron
a) Major Ideas
i.
Symbol: Fe
ii.
Color: Gray
iii.
Classification: Metallic
b) Found most:
i.
most abundant element
ii.
In the human body
c) I am most useful when I am mixed with small amounts of
carbon to produce steel
d) Earliest know use: 2500 B.C
Cobalt
a) Major Ideas
i.
Symbol: Co
ii.
Color: Gray
iii.
Classification: Metallic
b)Found most:
i.
Glass
ii.
Objects for beauty
c)Earliest know use: 1735
Nickel
a) Major Ideas
i.
Symbol: Ni
ii.
Color: Gray
iii.
Classification: Metallic
b)Found most:
i.
Makes materials stronger
ii.
Batteries (not so much anymore…)
c)Earliest know use: 1751
Magnetism
a)Three major ideas:
i. An invisible forced caused by certain solids
and fluids
ii. Magnets= have north and south poles that
can attract each other
iii. Neither of the Earth’s magnetic poles actually
at the geographic poles
Magnetism
b) Properties
i. Sprinkle iron filings near me and you’ll
see… I am surrounded by an invisible field
of force
ii. My power is from the spin of their
electrons
Magnetism
c) Current uses of magnets
i. Compass
ii. ATM cards/ Credit Cards
iii. Security tags
d) Earliest known use: 2 B. C
Atom
a) There are more than: 150
b)“Fundamental particles” which means:
i. Cannot be broken down into smaller particles
c)Ruled over by:
i. Strong and weak forces
Atom “Atom Family”
a) Three major ideas:
i.
All matter in the universe is made up of
ii. 117 different types of atoms
iii. Stable character with a long history
b)Scientists discovered: the atom took 100
years to discover
Atom “Atom Family”
c) Description: Mostly I’m space
i. Made up of:
1. Protons: positive particle
2. Neutrons: neutral particle
3. Electrons: negative particle
Electron
a) Three major ideas:
i.
Fundamental particle found orbiting an atom’s
nucleus
ii. “always” as many electrons as protons in an
atom
iii. A feather-light tyke that packs a tremendous
punch
Electron
b) Charge is: negative
c) I normally zip around outer regions of an atom
d) I always return and I can’t help it- with a negative
charge equal to a proton’s positive charge. I am
constantly drawn toward the nucleus.
e) Date of discovery: 1897
Proton
a) Three major ideas:
i. Subatomic particle found in the nucleus of
an atom
ii. “loves” to be at the center of things
iii. NOT a fundamental particle- made of
quarks
Proton
b) Charge is: positive
c) I cannot bear to be around other protons
d) I am a big fellow, around 2,000 times bigger
than an electron
e) Date of discovery: 1918
Neutron
a) Three major ideas:
i.
This fat fellow is the last piece of the atomic
puzzle
ii. Only affected by the strong force and gravity
iii. Made up of quarks and is the key to nuclear
chain reactions
Neutron
b) Charge is: neutral
c) I am a calming influence- without me,
protons would repel one another and fly
off to infinity
d) Date of discovery: 1932