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Unit 2 Test - The Atom and the Periodic Table Flashcards | StudBud
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Unit 2 Test - The Atom and the Periodic Table
Unit 2 Test - The Atom and the Periodic Table
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#unit2 #theatom #theperiodictable #chemistry
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Questions
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Answers
1
What charge do electrons have?
positive
negative
neutral
2
How did Mendeleev organize his periodic table?
By number of protons
By the atomic mass
By their charge
By their properties
3
This shows a(n)
d orbital
s orbital
p orbital
4
When you go from top to bottom on the periodic table, what happens to the radius?
It increases
It decreases
5
Rutherford's gold foil experiment lead to the discovery of the
energy level
electron
proton
nucleus
6
How many atoms does Fluorine have?
19
9
8
10
7
What is electronegativity?
How negative an atom is.
How many electrons an atom wants.
An atom's desire for electrons.
How many electrons an atom has.
8
What charge do neutrons have?
positive
neutral/no charge
negative
9
The three subatomic particles are:
atoms, nucleus, bohr
nucleus, energy levels, alpha particles
protons, neutrons, electrons
protons, nucleus, electrons
10
How many protons does Oxygen have?
16
O
8
2
11
What is a metalloid?
A nonmetal that is bonded to a metal
A metal that is bonded to a nonmetal
An element that has properties of both metals and nonmetals
An element that doesn't have properties of metals/ nonmetals
12
Who discovered electrons?
Einstein
J.J. Thompson
Millikan
Bohr
13
Which element has similar properties to Oxygen
Sulfur
Helium
Nitrogen
Hydrogen
14
When you go from left to right across the periodic table, what happens to electronegativity?
It decreases
It increases
15
Argon is a
metal
nonmetal
metalloid
16
This shows a(n)
p orbital
d orbital
s orbital
17
Boron is a
metal
nonmetal
metalloid
18
What is this an image of?
Millikan's oil drop experiment
Bohr model
Rutherford's gold foil experiment
Plum Pudding model
19
When you go from left to right across the periodic table, what happens to the radius?
It increases
It decreases
20
How did chemists originally organize elements on the periodic table?
by their charge
by atomic mass
by number of protons
by their properties
21
What is the main difference between metals and nonmetals?
Charge
Mass
Melting Point
Conductivity
22
Oxygen is a
metal
metalloid
nonmetal
23
What charge do protons have?
neutral
negative
positive
24
What is an atomic orbital?
A mathematical equation that shows where an e- is located
A mathematical equation that shows how much an atom weighs
A mathematical equation that shows different properties
A mathematical equation that shows what an atom's charge is
25
Calcium is a
metalloid
metal
nonmetal
26
When you go from top to bottom on the periodic table, what happens to electronegativity?
It decreases
It increases
27
The following is the correct electron configuration for Oxygen:
1s22p42p6
1s22s22p4
1s22s22p43s2
1s12s12p6
28
A neutral atom loses two electrons. Its charge would be:
-2
-1
+1
+2
29
What does an atom's radius tell us?
Size
How much it wants electrons
Number of protons
Charge
30
How many neutrons does Argon have?
39
40
22
18
31
What is the octet rule?
Atoms want to lose electrons until there are 8.
Atoms want to gain electrons until it has at least 8.
Atoms can only fit 8 electrons in their outer shell.
Atoms want full outer shells.
32
On the periodic table, nonmetals can be found:
on the left
on the bottom
on the right
33
What does a ladder have to do with the atom?
It represents the different kinds of atoms
It represents the charges of electrons
The rungs are like the different energy levels
It represents the different periods on the periodic table
34
What makes one element different from another?
number of neutrons
number of energy levels
number of protons
number of electrons
35
Which of the following would repel?
electron and proton
neutron and electron
proton and neutron
proton and proton
36
How did Rutherford's model of the atom differ from Thomson's?
There were energy levels
Most of it was negative
It had a nucleus
There were positive charges
37
How is the modern day periodic table organized
By their properties
By the number of protons
By their charge
By their mass
38
On the periodic table, metals can be found:
on the right
on the left
in the center
39
Why is an atom electrically neutral?
The electrons are on the outside
There is a positive nucleus
Same number of neutrons and protons
Same number of protons and electrons
40
Which of the following would
attract
?
proton and proton
electron and electron
proton and electron
electron and neutron
