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Periodic Table Flashcards | StudBud
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Periodic Table
Periodic Table
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A review quiz before a test on the periodic table for a sophomore physical science class
Flashcards
36 cards
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Practice quiz
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Questions
36
Answers
1
If an isotope of potassium has 19 protons, 19 electrons & 20 neutrons, what is its atomic mass?
39
58
19
38
2
If an isotope of gold has 79 protons, 79 electrons & 118 neutrons, what is the atomic mass?
197
276
79
158
3
What is the symbol for Krypton?
83.80
Kr
36
K
4
What is the symbol for Carbon?
12.011
C
6
Carbon
5
Particles with an electric charge of 1-
electron
nucleus
neutron
proton
6
Which of the following was an important accomplishment of Mendeleev’s?
The organization of elements by atomic mass and properties
The organization of elements by atomic number
The discovery of the electron
predicting missing elements
7
Which element is present in all life on earth?
silicon
helium
calcium
carbon
8
What is the symbol for Selenium?
S
34
78.96
Se
9
Atoms of the same element that have different numbers of neutrons
atomic mass
isotopes
quarks
periods
10
If oxygen has 8 protons, 8 neutrons, and 8 electrons, what is the atomic mass?
32
24
16
8
11
What do you get when you put Na and Cl together?
poision gas
water
salt
soft metal
12
Why did Mendeleev feel such pressure to be a successful scientist?
His mother died trying to get him an education.
His wife kept nagging at him
He had to pay for college for his children.
13
Which of the following families of elements is MOST reactive?
alkali metals
noble gases
transition metals
14
What is the atomic mass for Selenium?
S
78.96
34
Se
15
The number of protons and neutrons in an atom
atomic number
isotope
electron cloud
atomic mass
16
Which of the following can be made from carbon and oxygen?
carbon monoxide
carbon dioxide
water
salt
17
What is the atomic mass for Krypton?
83.80
36
K
Kr
18
The small, positively charged center of an atom
atom
electron
neutron
nucleus
19
If an isotope of copper has 29 protons, 29 electrons, and 35 neutrons, what is the atomic mass?
64
58
29
35
20
What is the atomic # for iron?
26
55.845
I
Fe
21
What is the atomic mass for iron?
I
26
Fe
55.845
22
Small particles that make up protons and neutrons
electron clouds
quarks
atoms
isotopes
23
Neutral particles that do not have an electric charge
electron
neutron
proton
nucleus
24
Why are the atomic number and the atomic mass different for atoms?
Atomic mass = # protons & neutrons and atomic # = # protons
They are random numbers & have no connection to one another
atomic mass counts electrons
Atomic mass = # protons and atomic # = # protons & neutrons
25
The smallest piece of matter that still retains the property of the element
nucleus
atom
proton
electron
26
Particles with an electric charge of 1+
electron
neutron
nucleus
proton
27
The area around the nucleus of an atom where its electrons are most likely found
isotopes
atomic number
electron cloud
atomic mass
28
What is the atomic number for Carbon?
6
12.011
Carbon
C
29
Which of the following families is LEAST reactive.
Alkali earth metals
Alkali metals
noble gases
halogens
30
What do you get when you put two hydrogen atoms with one oxygen atom?
poison gas
salt
soft metal
water
31
What is the atomic number for Krypton?
Kr
83.80
K
36
32
What is the atomic mass for Carbon?
Carbon
12.011
C
6
33
The number of protons in an atom
quark
isotope
atomic mass
atomic number
34
Why are the noble gases nonreactive?
they have a full outer shell of electrons
they have 6 electrons in their outer shell
they have 3 electrons in their outer shell
they have 1 electron in their outer shell
35
What is the symbol for iron?
55.845
Fe
I
26
36
What is the atomic number for Selenium?
Se
S
78.96
34
