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Ch. 4 Atoms Test Review (PS)
By Carly Rock
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Last updated about 2 years ago
30 questions
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Question 1
1.
What fundamental particles make up an atom?
Neutrons, Electrons, and Neutrinos
Protons, Neutrons, and Photons
Protons, Electrons, and Positrons
Protons, Neutrons, and Electrons
Question 2
2.
The number of protons in an atom determines what?
The atom's charge
The mass number
The atomic number
The number of neutrons
Question 3
3.
Where are the protons and neutrons located within an atom?
In the nucleus
In the atomic radius
In the neutral zone
In the electron shell
Question 4
4.
How does the number of protons relate to the number of electrons in a neutral atom?
There is no relation
They are equal
Protons are always more
Electrons are always more
Question 5
5.
What subatomic part of an atom carries a negative charge?
Nucleus
Electron
Proton
Neutron
Question 6
6.
Where is the majority of an atom's mass found?
Electron cloud
Atomic radius
Outer shells
Nucleus
Question 7
7.
Which atomic particle determines the identity of an atom?
Orbital
Neutron
Proton
Electron
Question 8
8.
What is the charge of a neutron?
Positive
Variable
Negative
Neutral
Question 9
9.
Who proposed the plum pudding model of atom?
J.J. Thomson
Niels Bohr
John Dalton
Ernest Rutherford
Question 10
10.
In Bohr's atomic model, where are the electrons located?
In a random cloud around the nucleus
Evenly distributed in the atom
In specific energy levels around the nucleus
In the nucleus
Question 11
11.
Who discovered the electron in the atomic structure?
Ernest Rutherford
John Dalton
J.J. Thomson
Niels Bohr
Question 12
12.
Who introduced the concept of the atom?
Ernest Rutherford
Niels Bohr
John Dalton
Dmitri Mendeleev
Question 13
13.
Which scientist's experiment concluded that atom's nucleus is small and positively charged?
Ernest Rutherford
John Dalton
J.J. Thomson
Niels Bohr
Question 14
14.
If magnesium (Mg) has an atomic number of 12, how many protons does it have?
24
18
12
22
Question 15
15.
How many electrons does chlorine (Cl) with an atomic number of 17 have given it is neutrally charged?
17
34
20
35
Question 16
16.
Oxygen (O) has an atomic number of 8 and a mass number of 16. How many neutrons does it have?
24
16
18
8
Question 17
17.
If sulfur (S) has a mass number of 32 and contains 16 protons, how many neutrons does it have?
32
16
18
48
Question 18
18.
How many protons are in a neutral atom of Oxygen (O)?
8
15
10
16
Question 19
19.
What is the number of electrons in a negatively charged Chlorine ion (Cl-) ?
19
18
20
17
Question 20
20.
How many neutrons are present in Carbon-14?
12
14
8
6
Question 21
21.
An ion of Sulfur with a negative 2 charge (S-2) has how many electrons?
16
22
18
20
Question 22
22.
How many neutrons does the isotope Carbon-14 have?
6 neutrons
7 neutrons
8 neutrons
14 neutrons
Question 23
23.
What is the number of neutrons in the Hydrogen-2 isotope?
2 neutrons
0 neutrons
3 neutrons
1 neutron
Question 24
24.
Determine the number of neutrons in the isotope Oxygen-18.
8 neutrons
10 neutrons
9 neutrons
18 neutrons
Question 25
25.
Why do different elements emit different colors in a flame test?
Due to different levels of combustion occuring in reactions
Due to different molecular weights of the compounds
Due to different amounts of energy released by electrons in different energy levels
Due to different elements reacting differently to heat
Question 26
26.
What is the term for the smallest unit of an element that maintains the properties of that element?
Electron
Atom
Molecule
Proton
Question 27
27.
What is a unique number for each element that equals the number of protons in an atom of that element?
Neutral Number
Atomic Number
Atomic Mass
Isotopic Number
Question 28
28.
Isotopes of an element have the same number of protons but different number of...
Protons
Orbitals
Electrons
Neutrons
Question 29
29.
What term is used to describe the total number of protons and neutrons in an atom?
Isotopic Mass
Mass Number
Atomic Number
Atomic Weight
Question 30
30.
Which subatomic particle contributes to an atom's mass, but not its charge?
Neutron
Quark
Electron
Proton