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Atoms and Moles Test Review
Atoms and Moles Test Review
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1
What is the mass number in this atomic notation for Germanium?
32
41
105
73
2
How many atoms of each element are present in the compound NaNO
3
?
Na:1 N: 1 O:3
NaN:1 O:3
NaN: 3 O:9
Na:3 N:3 O:9
3
What is the Average Atomic Mass of Potassium?
40.00
38.00
39.10
40.10
4
Created the planetary model.
Heisenberg
Rutherford
Bohr
JJ Thomson
5
Created the first atomic theory.
Bohr
Rutherford
Dalton
Democritus
6
Which anwer correctly states the charges of our 3 subatomic particles.
Proton: 0 Electron: - Neuton: +
Proton: + Electron: - Neuton: 0
Proton: - Electron: 0 Neuton: +
Proton: + Electron: 0 Neuton: -
7
What is the equation for the Mass Number of an element?
Mass Number = Protons + Neutrons
Mass Number = The number found under the element on the Element Table
Mass Number = Neutrons + Electrons
Mass Number = Protons + Electrons
8
Neutrons have a weight of one amu and a negative charge.
True
False
9
If a atom has gained two electrons what is it?
A Anion with a charge of -2
A Cation with a charge of +2
A Anion with a charge of +2
A Cation with a charge of -2
10
How many atoms of each element are in the compund SiO
2
?
Si- 2 O-2
Si- 1 O- 1
S-1 i-1 O-1
Si-1 O-2
11
Performed an experiment with gold foil to discover the nucleus.
Rutherford
J.J. Thomson
Democratis
Heisenberg
12
Molar Mass is found beneath the Element on the periodic table.
False
True
13
Molar Mass and Average Atomic Mass are not the same.
False
True
14
Isotopes are the same element with varying number of Protons.
False
True
15
What Element is this?
Oxygen
Nitrogen
Carbon
Magnesium
16
Which of these two are correctly paired Isotopes?
Hydrogen-3 Carbon-6
Hydrogen-1 Carbon-3
Carbon-6 Carbon-6
Hydrogen-1 Hydrogen-3
17
This scientist performed an experiment with a Cathode Ray to discover the electron.
Bohr
J.J. Thomson
Heisenberg
Democritus
18
Hyphenated Notation is the
Element Name - Mass Number
Mass Number - Element Name
Element Name - Proton Number
Element Abbreviation - Proton Number
19
Protons are negatively charged subatomic particles.
True
False
20
A element is found to have the following isotopes find the AAM:Element-85 (72%, 84.9 amu)Element-87 (28%, 86.9 amu)
86.46 amu
86.56 amu
84.56 amu
85.46 amu
