Hosted by Mr. Brown
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Hosted
by
Mr. Brown
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Inside the Atom Atomic Model History
Elements Periodic Table
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Row 1, Col 1
This has a negative charge andis outside the nucleus of an atom.
Electron
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1,2
Who was the first person tohave the idea there may be small
things making up everything?
Democritus
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1,3
This element is the only metalthat is liquid at room
temperature.
Mercury
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1,4
Who created the first periodictable even though it was
incorrect?
Dmitri Mendeleev
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2,1
What is in the nucleus of anatom?
Protons and Neutrons
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2,2
This scientist found negativelycharged particles.
J.J Thompson
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2,3
The first letter in an elementsymbol is_______
Capitalized
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2,4
What are groups?Do elements in groups havesimilar chemical properties?
They are vertical columns, yes
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3,1
An atom is made mostly of what?
Empty Space
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3,2
This scientist came up withthe idea that there was
center (nucleus) in an atom.
Rutherford
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3,3
What are two elements that normally have 8 valence
electrons?
Neon, Argon, Krypton, Xenon, Radon
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3,4
What are two properties of metals?
Good conductors of heat & electricity, malleable, shiny luster, most are solids, silver-gray
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4,1
What are the letters that representthe shells, and how many electrons
can be in each shell?(Think Bohr Model)
K-2, L-8, M-18, N-32
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4,2
Draw a Bohr model of Potassium
Teacher Check
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4,3
Name 4 elements that aregases at room temperature.
Helium, Hydrogen, Chlorine, Fluorine, Oxygen, Nitrogen, Any Noble Gases
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4,4
Who was the person who correctedthe first periodic table, and how
did he arrange the elements?
Moseley, Atomic Number
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5,1
What does the mass numbertell about the atom?
Tells the number of protons and (neutrons) in the nucleus.
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5,2
What device did Thompsonuse in his experiments to find
electrons?
Cathode Ray Tube
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5,3
What element is Latin: aurum
Gold (Au)
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5,4
This group of elementsreacts explosively with alkali
metals
Halogens