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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
12.0115
B
6
C
11
D
12
2) How many electrons are in a stable atom of Neon?
A
21
B
10
C
30
D
20
3) What is the chemical symbol for Hydrogen?
A
He
B
Hg
C
H
D
Hd
4) How many neutrons are in an atom of Beryllium?
A
9
B
13
C
4
D
5
5) How many electrons surround the nucleus of an atom of Nickel?
A
28
B
58
C
30
D
58.70
6) Protons....
A
Orbit the nucleus
B
Are negatively charged
C
Have less mass than electrons
D
Are positively charged
7) The atomic number...
A
States how many neutrons are in 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
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
32
B
25
C
27
D
13
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
11
B
12
C
23
D
22.998
12) Which nuclear process describes a large nucleus separating into smaller fragments?
A
Alpha Decay
B
Fission
C
Fusion
D
Beta Decay
13) The charge and relative mass number of a neutron are...
A
-1 charge, 0 mass
B
0 charge, 1 mass
C
-1 charge, 1 mass
D
+1 charge, 1 mass
14) How many neutrons does an atom of lead contain?
A
125
B
207
C
207.19
D
82
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 atomic number is always larger than the average atomic mass
C
The more isotopes of a given element, the higher 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
Chlorine
C
Helium
D
Lithium
17) Which atom contains the most mass?
A
C
B
Ar
C
Cu
D
N
18) Which of the following has the least amount of mass?
A
Neutron
B
Nucleus
C
Proton
D
Electron
19) How many neutrons does an atom of Hydrogen contain?
A
1
B
1.00794
C
0
D
2
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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