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