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Atoms and the Periodic Table
Atoms and the Periodic Table
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Quiz on atoms and the periodic table
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Questions
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Answers
1
Which group lists the parts of an atom from the
most
massive to the
least
massive?
Electron, proton, nucleus
Proton, electron, nucleus
Nucleus, proton, electron
Proton, nucleus, electron
2
What is the name for a row on the periodic table?
Period
Section
Group
Family
3
Which of the following is the correct symbol and atomic number for gold?
Gd, 97
Au, 97
Au, 79
Gd, 79
4
Which of these particles is smallest?
Element
Molecule
Atom
Proton
5
What is the mass number of an atom with 8 protons, 8 electrons, and 10 neutrons?
10
8
18
16
6
What is the symbol for the element with an atomic number of 10?
B
Cl
Ne
Pb
7
Chlorine and bromine are both what?
Metalloids
Compounds
In the same group
In the same period
8
If an atom has 5 protons and 3 neutrons, how many electrons does it have?
3
5
2
8
9
Which of these statements are true about the electron cloud?
It is where the electrons are found
It is inside the nucleus
It is made up of protons and electrons
It has the most mass in an atom
10
What color circle(s) is/are in the nucleus of the atom?
Red
Red and yellow
White
Yellow
11
How many neutrons does K have if its atomic number is 19 and atomic mass is 39?
20
58
19
39
12
Boron, silicon, germanium, arsenic and selenium are all what?
Metalloids
Halogens
Non-metals
Noble Gases
13
If an atom had an atomic number of 50 and a mass number of 80, how many neutrons are there?
80
50
130
30
14
Each box on the periodic table represents what?
A compound
A mixture
An element
A metal
15
Which of these statements is true about an atom's nucleus?
It is made up of protons and neutrons
It is smaller than an electron
It is the same size in all atoms
It is negatively charged
16
Why do elements in group 15 share similar chemical properties?
They all have the same atomic number
Their atoms have the same number of valence electrons
They are all nonmetals
They are found in the same period
17
If you were drawing a model of an atom, where would the nucleus be?
Outside the electron cloud
In between the center of the atom and the electron cloud
In the center of the atom, surrounded by the electron cloud
Mixed in with the electrons
18
Which of these is a true statement about elements in a
period
?
Atomic numbers increase by 1 from top to bottom
Atomic numbers increase by 1 left to right
Atomic masses increase by one from top to bottom
Atomic masses increase by 1 left to right
19
Phosphorus is in group 15 on the periodic table. What is its average atomic mass?
30
15
45.974
30.974
20
What is the smallest particle of the element oxygen that has the same properties as oxygen?
A molecule that contains oxygen
An atom of oxygen
An electron in an oxygen atom
A proton in an oxygen atom
21
Which pair would best represent the size of a proton to that of an electron?
A volleyball to a basketball
A baseball to a tennis ball
A basketball to a soccer ball
A beach ball to a marble
22
What two things do you add to find an element's mass number?
Protons and neutrons
Electrons and protons
Neutrons and electrons
Protons, neutrons, and electrons
23
What color circle(s) is/are in the electron cloud?
White
Red
Red and yellow
Yellow
24
What is the chemical symbol for Sodium?
So
Dm
Di
Na
25
Helium has an atomic number of 2. What does the atomic number tell you?
The number of protons in a helium atom
The period number of helium
The group number of helium
The average atomic mass
