Round 2

1
Ch. 4 Review

• Round 2

2
Pottpourio)
Super Models
About Average
Fire in the Sky
100
100
100
100
200
200
200
200
300
300
300
300
400
400
400
400
500
500
500
500
3
Billiard ball
What is the name of JohnDaltons model of the
atom?

• Row 1, Col 1

4
183.84 amu

74 W Tungsten 183.84
What is the average atomic mass of tungsten?

• 1,2

5
red
What color firework is producedby the element
strontium?

• 1,3

6
repel
Like charges ___.

• 1,4

7
Plum pudding, chocolate chip cookie, or chocolate
chip ice cream.
What food is Thomsons model of the atom compared
to?

• 2,1

8
Mass of isotopes or distrubution in nature
What two factors does averageatomic mass depend
on?

• 2,2

9
Zambelis
What family is known as the First Family of
Fireworks?

• 2,3

10
Atoms of same element have same mass isotopes
Which part of Daltonsatomic theory is no
longeraccepted, and why?

• 2,4

11
Electron cloud
Which model of the atom is the most modern?

• 3,1

12
1/12 the mass of a carbon-12 atom
How is 1 amu defined?

• 3,2

13
Chinese
What country first discoveredgunpowder?

• 3,3

14
D
Which of the following terms is similar to
what you would get if you mapped your location
in the school building every 10 minutesfor one
day? A. energy level
B. electron configuration C. plum
pudding D. orbital

• 3,4

15
Aristotle or Ancient Greeks
Who believed in the elementsEarth, Air, Fire and
Water?

• 4,1

16
24.32 amu
Find the average atomic mass ofmagnesium if
79 out of 100 atoms are Mg-2410 out of 100 atoms
are Mg-2511 out of 100 atoms are Mg-26

• 4,2

17
Couldnt get high enough temperatures.
What kept theancient alchemists from being able
to produce vibrant colorsin their fireworks?

• 4,3

18
James Chadwick
Who discovered the neutron?

• 4,4

19
Most of the atom is empty space positive charge
is concentrated in the small, central nucleus.
Why did most of the alphaparticles in
Rutherfordsexperiment pass straightthrough the
gold foil?

• 5,1

20
boron
An element on the periodic table has two
naturally occurring isotopes. One has amass of
10 amu. The other has a mass of 11 amu..
What is the name of the element? . 200
BONUS Which isotope is more abundant and how do
you know?

• 5,2

21
Draw a diagram to show how colors are produced
by fireworksaccording to Bohrs model of the
atom.

• 5,3

22
Rutherfords student, Marsden
Who actually conducted thegold foil experiment?

• 5,4