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RE Chemistry = Unit 3 = The Periodic Table Flashcards | StudBud
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RE Chemistry = Unit 3 = The Periodic Table
RE Chemistry = Unit 3 = The Periodic Table
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1
Groups on the periodic table are arranged
Vertically
Horizontally
2
Which subatomic particle plays the greatest role in determining an atom's chemical properties?
neutron
quartz
electron
proton
3
Which group of elements on the periodic table are all gases at room temperature?
Metalloids
Alkali metals
Halogens
Noble gases
4
As you move from left to right across the periodic table, elements...
become more metallic.
have a lower atomic weight.
become less metallic.
have a lower atomic number.
5
J.W. Dobereiner published a classification system where elements were grouped in...
2's
3's
5's
4's
6
What atom is likely to have an overall +1 charge?
sulfur
magnesium
fluorine
potassium
7
Which group of elements is un-reactive?
Transition metals
Noble Gases
Inner transition metals
Alkaline-earth metals
8
How does the atomic size change as you move down a group on the periodic table?
it decreases then increases
decreases
increases
no change
9
Which accurately describes nonmetals?
Always solid at room temperature
Poor conductors of electricity
Often used in computer parts
Both malleable and ductile
10
Which element is most likely to NOT be an ion?
argon
sulfur
fluorine
lithium
11
Which statement about the alkali metals is correct?
They are usually gases.
They are extremely nonreactive.
They are located in the left-most column of the periodic table.
They form negative ions with a -1 charge.
12
Which of the following ions would have the smallest atomic radius?
Sc
Se-2
K+1
Ca+2
13
Which of the following atoms has the lowest electronegativity?
oxygen
cesium
fluorine
lithium
14
Which of the following elements is an alkali metal?
mercury
magnesium
calcium
sodium
15
What atom is likely to have an overall -1 charge?
fluorine
potassium
sulfur
lithium
16
The periodic law states that elements that have similar properties appear...
at every tenth element.
to the left of each other.
to the right of each other.
at regular intervals.
17
Which of the following groups on the periodic table is likely to form cations?
group 17
group 13
group 1
group 18
18
Which element is a metalloid?
silicon
sodium
carbon
uranium
19
As you move from left to right across the periodic table electronegativity...
decreases
stays the same
increases
increases then decreases
20
The periodic table can be used by scientists to...
predict how atoms of different elements will combine.
determine the differences between ionic and covalent bonding.
identify all of an element's physical and chemical properties.
find out the main uses of each element.
21
Magnesium is located to the right of sodium because magnesium has...
no protons.
fewer protons.
more protons.
no neutrons.
22
Elements in a family have similar...
atomic weights
atomic sizes
atomic symbols
chemical properties
23
Mendeleev left gaps in his periodic table because...
the table was too small.
the table was too full.
protons belonged there.
no known elements fit there.
24
Using the photo, which of these is an atom of an alkali metal?
A
B
C
D
25
Group 17 elements form a...
-7 ion
-1 ion
+7 ion
+1 ion
26
The Russian chemist who arranged the periodic table originally arranged it how?
by increasing electrons
by increasing atomic number
alphabetically
by increasing atomic mass
27
Would you normally expect neon to form compounds?
No, neon has eight electrons in its outermost level and is stable.
No, neon needs six electrons to fill its outermost level.
Yes, neon needs six valence electrons to fill its outermost energy level.
Yes, but neon is a rare gas and difficult to obtain.
28
Which statement about noble gases is correct?
They are highly reactive with both metals and nonmetals.
They are extremely rare in nature.
They exist as single atoms rather than as molecules.
They form compounds with very bright colors.
29
Which of the following atoms would be most likely to lose an electron?
F
Rb
At
Li
30
Elements that share properties of both metals and nonmetals are called...
valances
metalloids
period
ions
31
Most elements on the periodic table are classified as __________.
Metalloids
Gases
Metals
Nonmetals
32
How are elements in the periodic table organized?
Alphabetically
Increasing number of electrons
Most reactive to least reactive
Based on physical and chemical properties
33
Who is known as the "Father of the Periodic Table?"
Mendeleev
Thompson
Dobereiner
Mr. Rydborn
34
A neutral atom of oxygen has how many valence electrons?
4
16
8
6
35
Nonmetals are found in which area of the periodic table?
in the bottom rows
on the right side
in the middle column of the periodic table
on the left-most side
36
Which pair or elements would likely have a similar arrangement of outer electrons and have similar chemical behavior?
helium and fluorine
phosphorus and nitrogen
chlorine and oxygen
carbon and nitrogen
37
Based on the periodic table, which of these elements is likely to have properties similar to boron?
chlorine
neon
magnesium
aluminum
38
Which of these elements would most likely be a shiny, gray, solid at room temperature, and a good conductor of heat?
aluminum
argon
sulfur
chlorine
39
The energy required to remove an electron from an atom is called...
electron energy
electronegativity
ionization energy
bond energy
40
Group 17 elements form...
metals
metalloids
anions
cations
41
Which element has the smallest atomic radius?
francium
lithium
radon
fluorine
42
In the modern periodic table, elements are arranged how?
electrons
alphabetically
atomic number
atomic mass
43
Which group includes some of the most familiar elements like nickel, iron, and copper?
Halogens
Inner transition metals
Transition metals
Noble gases
44
Which group on the periodic table is the most reactive?
Alkali metals
Transition metals
Alkaline-earth metals
Halogens
45
What percentage of the periodic table are metals?
95%
70%
80%
50%
46
T/F: Atoms with a small radii tend to have high ionization energies.
True
False
47
Each horizontal row on the periodic table is called what?
Group
Period
48
Which of the following atoms would have the highest ionization energy?
zinc
tin
chlorine
francium
49
Atoms that gain or lose electrons are called...
nonmetals
metals
ions
isotopes
50
Each column of the periodic table is...
an isotope.
an element.
a group.
a period.
51
The three main groups of elements are metals, nonmetals, and...
gases
metalloids
alkali metals
isotopes
52
Which group of elements has the lowest ionization energies?
alkaline earth metals
halogens
transition metals
alkali metals
53
Atoms of elements that are in the same group have the same number of...
neutrons
valence electrons
protons and neutrons
protons
54
Which type of ion typically has a larger atomic radius than the neutral atom?
dogion
antion
none of the above
cation
55
Which pair of elements would have similar properties due to the position in the periodic table?
Copper (Cu), Gold (Au)
Calcium (Ca), Helium (He)
Aluminum (Al), Zinc (Zn)
Lithium (Li), Beryllium (Be)
56
In Mendeleev's periodic table, elements in each column had similar...
symbols
atomic numbers
properties
atomic masses
57
How many periods are there in the periodic table?
9
10
18
7
58
Most nonmetals are...
good conductors
metalloids
shiny
brittle
59
The order of elements in the periodic table is based on...
the number of protons in the nucleus.
the number of neutrons in the nucleus.
atomic mass.
the electric charge of the nucleus.
60
Metals tend to be...
brittle
gases
dull
good conductors of heat
