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Reinhard Ignite Atomic Structure Test Review 2019-20 Flashcards | StudBud
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Reinhard Ignite Atomic Structure Test Review 2019-20
Reinhard Ignite Atomic Structure Test Review 2019-20
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Covers the basic structure of an atom, ions, and isotopes. #chemistry #atoms #atomicstructure
Flashcards
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Questions
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Answers
1
What is the currently accepted model of the atom?
Electron cloud (wave) model
Bohr (planetary model)
Earth, air, fire, water
Plum pudding model
2
How many protons are in the
neutral
atom shown below?
8
cannot be determined from the information given
12
22
3
The following Lewis dot diagrams show the number of ____________________ around the element symbol.
total electrons
protons
valence electrons
neutrons
4
What is the term used for the electrons in the outermost shell of an atom?
valence electrons
electron cloud
bohr electrons
lewis dots
5
Who is this Christmas-hating character?
the Grinch
Mr. Gels
Scrooge
Leonardo DeCaprio
6
Oxygen’s atomic number is 8. This means that an oxygen atom must always have
8 protons
8 neutrons
8 protons and neutrons
a mass number of 8
7
What is true of an atom consisting of 2 protons, 2 electrons, and 2 neutrons?
all of these are true
it is a helium atom
it is neutral
it has a mass number of 4
8
What is the maximum number of electrons in the first energy level closest to the nucleus?
0
8
2
4
9
Which number label indicates a proton in the model of the atom below?
3
4
2
1
10
Which type of visible light has the longest wavelength?
blue
violet
yellow
red
11
How will most chemistry students feel at the end of the day this Friday?
ready to take another chemistry test for fun
relieved test is over and ready to celebrate
12
The subatomic particles with no charge in an atom are the _______.
protons and neutrons
neutrons
protons
electrons
13
If an element has an atomic number of 7 and an mass number of 14, there must be
14 electrons in the nucleus of the element
7 protons and 7 electrons in the nucleus of the element
14 protons in the nucleus of the element
7 protons and 7 neutrons in the nucleus of the element
14
How many neutrons are in the atom shown below?
22
70
26
48
15
What type of visible light has the highest energy?
yellow
violet
red
blue
16
Which of the following isotopes of zinc is the lightest?
zinc - 64
zinc - 67
zinc - 68
zinc - 66
17
The mass of an electron is _____.
essentially zero
equal to the mass of the nucleus
1 atomic mass unit
2000 times as much as a proton
18
What characteristic of an atom is determined by the number of protons?
reactivity
chemical symbol or identity
mass
if the atom is an isotope
19
What is the mass number of this element?
27
5
32
59
20
The average atomic mass of magnesium is the weighted average of the atomic masses of
the most abundant isotope of Mg
the least abundant isotope of Mg
all of the naturally occurring isotopes of Mg in a sample
all of the elements in the universe
21
When writing nuclear or isotope symbols, what value goes in position "A"?
atomic number
name
charge
mass number
22
Which atom consists of 13 protons, 14 neutrons, and 13 electrons?
silicon
neon
aluminum
cobalt
23
When an electron jumps from a lower energy level close to the nucleus to a higher one, energy is
emitted
the same
absorbed
released
24
Based on its placement in the periodic table, how many valence electrons does Neon (Ne) have?
10
2
6
8
25
Why do atoms have an overall charge of zero?
the number of neutrons equals the number of electrons
the electrons are in energy levels instead of in the nucleus
the number of protons equal the number of neutrons
the number of protons equal the number of electrons
26
An atom like sodium can become a positively charged sodium ion. How does this happen?
it gains electrons
it either gains or loses neutrons
it gains protons
it loses electrons
27
Where is most of the mass in an atom located?
in the neutrons
in the nucleus
in the protons
in the electron cloud
28
Kr-78 is an isotope of krypton (atomic number 36). How many neutrons are in this atom?
36
42
78
62
29
For electromagnetic radiation, as the wavelength increases, the energy _________________
stays the same
increases
disappears
decreases
30
Carbon-14 is an isotope of carbon. What does the number 14 indicate?
atomic mass
atomic number
number of protons
mass number
31
When writing symbols, what value goes in position "C"?
charge
atomic number
name
mass number
32
Which number label indicates the nucleus in the atomic model shown below?
2
3
1
4
33
One isotope of oxygen differs from another isotope of oxygen in:
all of these
the mass number and number of neutrons
the number of protons
the number of protons and electrons
34
How many energy levels does this atom have?
4
8
2
20
35
The negatively charged particles of an atom are the ______.
protons & neutrons
neutrons
electrons
protons
36
When writing nuclear or isotope symbols, what value goes in position "Z"?
mass number
charge
atomic number
name
37
How does S
-2
differ from a neutral sulfur atom?
atomic number
mass number
number of electrons
atomic mass
38
Which number label indicates an electron in the model of the atom below?
3
4
2
1
39
Each element is unique and different from other elements because of its
chemical symbol
atomic number
number of protons
all of the above
40
What are the differences between the isotopes of hydrogen shown below?
the mass number and the number of neutrons
the atomic number and the number of protons
the number of electrons and protons
the atomic number and the number of electrons
41
The particles which have equal but opposite electrical charges are
it varies depending upon the element
protons and electrons
neutrons and protons
neutrons and electrons
42
How many valence electrons does this element have based on the Bohr diagram?
5
4
3
15
43
What takes up most of the volume of an atom?
electrons
protons and neutrons
air
nucleus
44
The positively charged particles of an atom are the ________.
protons
neutrons
electrons
protons & neutrons
45
If you were given the following isotope mass and abundance data, what average atomic mass would you predict?
slightly below 88 amu
less than 84 amu
86 amu
higher than 88 amu
46
How many protons and electrons are in a copper +2 ion (atomic number of 29)?
29 protons, 31 electrons
27 protons, 31 electrons
29 protons, 27 electrons
27 protons, 29 electrons
