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Q 1/80
Score 0
A substance made up of only one type of atom is referred to as:
30
an isotope.
a subatomic particle.
an atom.
an element.
Q 2/80
Score 0
The smallest particle of an element that still maintains its distinct chemical properties is called:
30
an atom.
an element.
an isotope.
an ion.
80 questions
Q.
A substance made up of only one type of atom is referred to as:
1
30 sec
Q.
The smallest particle of an element that still maintains its distinct chemical properties is called:
2
30 sec
Q.
This subatomic particle has a positive charge.
3
30 sec
Q.
These subatomic particles are found in the nucleus of an atom.
4
30 sec
Q.
This subatomic particle has no charge.
5
30 sec
Q.
What subatomic particles make up an atom?
6
30 sec
Q.
This subatomic particle has a negative charge.
7
30 sec
Q.
Which subatomic particles are found in a "cloud" surrounding the nucleus of an atom?
8
30 sec
Q.
An electrically neutral atom has a different number of protons and electrons.
9
30 sec
Q.
What information do we learn from the atomic number?
10
30 sec
Q.
What information do we learn from the atomic mass?
11
30 sec
Q.
Atoms of the same element with different numbers of neutrons are called:
12
30 sec
Q.
Atoms of this element have 8 protons.
13
30 sec
Q.
Atoms of this element have 1 proton.
14
30 sec
Q.
Atoms of this element usually have zero neutrons in the nucleus.
15
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Q.
This atom, in its neutral form, has 2 fewer electrons than lithium.
16
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Q.
This atom, in its neutral form, has two electrons in its first shell and no other electrons.
17
30 sec
Q.
This atom usually has 6 neutrons in its nucleus.
18
30 sec
Q.
This atom has one more proton than boron.
19
30 sec
Q.
This atom has 2 electrons in its first energy shell and 4 electrons in its second energy shell.
20
30 sec
Q.
Which of these Bohr models represents chlorine?
21
30 sec
Q.
How many neutrons are normally in a chlorine atom?
22
30 sec
Q.
How many neutrons are normally in a sodium atom?
23
30 sec
Q.
Will the atom in this drawing be more likely to gain or lose an electron when forming an ionic bond?
24
30 sec
Q.
Mendeleev created a periodic table, which gained traction in the chemistry world. What was special about his table that made chemists believe it would be useful?
25
30 sec
Q.
When Mendeleev started working on a periodic table, how did he group the known elements?
26
30 sec
Q.
When did Mendeleev first publish his table of the elements?
27
30 sec
Q.
A scientist named Alexandre-Emile Beguyer De Chancourtois put together a diagram of the elements that was never widely accepted. Why was his diagram not accepted?
28
30 sec
Q.
Glenn Seaborg made some important adjustments to the periodic table. What did he change?
29
30 sec
Q.
In what decade did chemists begin making artificial elements beyond uranium?
30
30 sec
Q.
The movement of an electron filling the "gap" of a displaced electron releases what?
31
30 sec
Q.
After Mendeleev created his periodic table, an entire group of elements was added. What group was added?
32
30 sec
Q.
In the final periodic table, the location of the element on the table directly corresponds with what characteristic?
33
30 sec
Q.
Henry Moseley's work led to which of the following?
34
30 sec
Q.
What happens to atomic radius as you move across a period on the periodic table?
35
30 sec
Q.
What happens to atomic radius as you move down a group on the periodic table?
36
30 sec
Q.
Why does the radius of each atom get larger as you move down a group in the periodic table?
37
30 sec
Q.
What is the effective nuclear charge of an atom?
38
30 sec
Q.
An atom with a net electric charge due to the loss or gain of one or more electrons is called a(n):
39
30 sec
Q.
The outermost shell of an atom is referred to as:
40
30 sec
Q.
A(n) _________ bond is a chemical bond formed by the attraction between positively and negatively charged ions.
41
30 sec
Q.
Which of the following is NOT a characteristic of ionic bonds?
42
30 sec
Q.
If an atom does not have a full valence shell, that atom is likely to be inert.
43
30 sec
Q.
Which type of ion has a positive charge?
44
30 sec
Q.
What is the general formula for determining the number of electrons that can theoretically fit in any electron shell?
45
30 sec
Q.
Choose the statement that is true.
46
30 sec
Q.
Get a piece of scratch paper. Using ptable.com and your knowledge of the Bohr model, draw each of the following atoms: nitrogen, helium, sodium, and phosphorus.
47
30 sec
Q.
What type of atom has a negative charge?
48
30 sec
Q.
An atom with a full outer shell of electrons is inert.
49
30 sec
Q.
An atom whose outer shell is not full will be:
50
30 sec
Q.
In which group(s) will you find transition metals in the periodic table?
51
30 sec
Q.
In which group will you find noble gases in the periodic table?
52
30 sec
Q.
Which element(s) will be liquid at 0K?
53
30 sec
Q.
What are the element symbols for the Metalloid elements?
54
30 sec
Q.
When viewing the periodic table on ptable.com, how would you determine if an element is solid, liquid, or gas at a specific temperature?
55
30 sec
Q.
What is the melting point for calcium?
56
30 sec
Q.
Which element has a melting point of 1687 K?
57
30 sec
Q.
What is the atomic radius of gallium?
58
30 sec
Q.
In what year was sodium discovered?
59
30 sec
Q.
Which of the following elements is the weakest conductor of heat?
60
30 sec
Q.
Which of the following elements is the strongest conductor of heat?
61
30 sec
Q.
How many isotopes exist for aluminum?
62
30 sec
Q.
How many isotopes exist for selenium?
63
30 sec
Q.
Which is the most abundant isotope of neon?
64
30 sec
Q.
Which is the least abundant isotope of chlorine?
65
30 sec
Q.
In theory, what is atomic radius?
66
30 sec
Q.
What causes the trends in atomic radius on the periodic table?
67
30 sec
Q.
The energy required to remove an electron from an atom is called?
68
30 sec
Q.
Ionization energy decreases as you move up a group on the periodic table, from bottom to top.
69
30 sec
Q.
Ionization energy increases as you move across a period on the periodic table, left to right.
70
30 sec
Q.
The amount of energy released when an electron is added to a neutral atom is called:
71
30 sec
Q.
Which of these groups generally has the higher electron affinity?
72
30 sec
Q.
Compare chlorine and magnesium. Which atom has a higher electron affinity?
73
30 sec
Q.
Compare iodine and rubidium. Which atom has a higher electron affinity?
74
30 sec
Q.
The measure of attraction of an atom for electrons is called:
75
30 sec
Q.
What is the general trend for electronegativity as you move across a period, left to right, on the periodic table?
76
30 sec
Q.
What is the general trend in electronegativity as you move down a group, top to bottom, on the periodic table?
77
30 sec
Q.
Would an ionic bond form between bromine and potassium?
78
30 sec
Q.
Would an ionic bond form between carbon and hydrogen?
79
30 sec
Q.
How would you determine if an ionic bond would form between two atoms?
