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Chemistry
Test Description: Practice
Instructions: Answer all questions to get your test result.
1) How many protons are in an atom of Carbon?
A
12
B
12.0115
C
6
D
11
2) How many electrons are in a stable atom of Neon?
A
10
B
30
C
21
D
20
3) What is the chemical symbol for Hydrogen?
A
Hg
B
He
C
Hd
D
H
4) How many neutrons are in an atom of Beryllium?
A
5
B
4
C
13
D
9
5) How many electrons surround the nucleus of an atom of Nickel?
A
30
B
58.70
C
28
D
58
6) Protons....
A
Orbit the nucleus
B
Have less mass than electrons
C
Are positively charged
D
Are negatively charged
7) The atomic number...
A
Is the same as the number of protons in an atom of that element
B
Is the average mass of the element
C
States how many neutrons are in the nucleus
D
Orbits the nucleus
8) Which element contains 9 protons?
A
Fluorine
B
Lithium
C
Beryllium
D
Iron
9) If Aluminum has an atomic number of 13 and has 14 nuetrons, what is it's mass?
A
25
B
27
C
13
D
32
10) What is the chemical symbol for Chlorine?
A
C
B
Sn
C
Ch
D
Cl
11) What is the atomic number of Na?
A
22.998
B
11
C
12
D
23
12) Which nuclear process describes a large nucleus separating into smaller fragments?
A
Fission
B
Fusion
C
Beta Decay
D
Alpha Decay
13) The charge and relative mass number of a neutron are...
A
-1 charge, 1 mass
B
+1 charge, 1 mass
C
-1 charge, 0 mass
D
0 charge, 1 mass
14) How many neutrons does an atom of lead contain?
A
207.19
B
125
C
82
D
207
15) Which statement about an element’s average atomic mass is correct?
A
It is calculated by taking the average atomic number of a given element
B
The more isotopes of a given element, the higher the average atomic mass
C
It is a weighted average, so abundant isotopes have a greater effect than uncommon ones
D
The atomic number is always larger than the average atomic mass
16) Which element is located in period one?
A
Chlorine
B
Nitrogen
C
Helium
D
Lithium
17) Which atom contains the most mass?
A
Ar
B
Cu
C
C
D
N
18) Which of the following has the least amount of mass?
A
Nucleus
B
Proton
C
Neutron
D
Electron
19) How many neutrons does an atom of Hydrogen contain?
A
1.00794
B
0
C
1
D
2
20) Isotopes of an element have the same number of , but a different number of
A
Electrons, Protons
B
Protons, Neutrons
C
Neutrons, Protons
D
Protons, Electrons
*select an answer for all questions
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