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WorksheetsChapter 6 Chem
Total questions: 79
Worksheet time: 1hrs 19mins
Using a periodic table, type the atomic number of an element that is HEAVIER than the element to it's immediate right.
_
Please do not use man-made elements as your choice. Man-made elements have whole numbers in parenthesis for atomic masses.
Using a periodic table, type the atomic number of an element that is HEAVIER than the element to it's immediate right.
27
13
46
3
Who is the father of the periodic table?
Mosely
Meyer
Mendeleev
spongebob
Who developed the concept of atomic number?
Mendeleev
Meyer
Mosely
Bob
The periodic table is arranged by increasing atomic mass.
True
False
Mendeleev was the first to organize a table of elements.
true
False
Mendeleev was the first to predict the existence of undiscovered elements.
true
false
Which was not a predicted property of eka-aluminum?
It would have an atomic mass of 68.
It would melt at a low temperature.
It would be brittle, like glass.
. It would be a conductor.
What element was synthesized in the cylotron?
Techtenium
Mendeleevium
Aluminum
Gallium
What element did Mendeleev call "Eka-aluminum"
techtinium
gallium
mendelevium
boron
Which element is in the same period as hydrogen?
Helium
Lithium
Copper
Xenon
Type the case sensitive SYMBOL of an element in the alkali METAL family: _
Na
H
Cr
P
Type the case sensitive SYMBOL of an element in the noble gas family:
H
Kr
Be
N
Type the case sensitive SYMBOL of a transition metal:
Cr
H
NA
Mg
Type the case sensitive SYMBOL of an element in the alkaline earth metal family:
Be
H
He
F
Which of the following elements is in the same period as phosphorus?
oxygen
magnesium
carbon
nitrogen
B group elements are the:
short columns in the middle
tall groups on the ends
Type the case sensitive SYMBOL of an element that is a metalloid:
B
C
N
Li
Type the case sensitive SYMBOL of an element in the chalcogen family:
F
H
S
Na
Elements in the same row as copper are considered the same family as copper.
True
False
Type the case sensitive SYMBOL of an element in the halogen family:
Fe
F
Mg
K
Of the elements Pt, V, Li, and Kr, which is a nonmetal?
Li
Kr
V
Pt
Why are metalloids used in electronics?
They are semi-conductors.
They get very hot.
They conduct electricity faster than metals or non-metals.
They cannot break.
Which is not a characteristic of metals.
They are usually silver in color.
They form anions.
They have high melting points.
They are usually solids at room temperature.
Non-metals are lusterous.
True
False
Metals are mostly _______ at room temperature
Solid
Liquid
Gas
Which of the following categories includes the majority of the elements?
metalloids
liquids
nonmetals
metals
Which of these is NOT a diatomic element?
H
C
Br
l
Which element would form a CATION?
Cations have positive ion charges.
Au
S
O
He
Which element is not shiney?
Na
S
Mg
Al
I. (#53)
Halogen
Noble gas
metalloid
Which element not is a metalloid? _
S
Ge
As
B
Which element would form anions?
Anions have NEGATIVE charges
Cu
Br
K
Xe
Which element is malleable?
P
S
C
MN
Which element would have a very high melting point?
Au
C
P
S
Na (#11)
Alkali
Alkaline earth metal
Which element is diatomic?
O
C
Ne
Ni
Which element is not diatomic?
H
He
Br
Cl
Which element is a good conductor of heat?
O
S
P
Cu
Which element is ductile?
N
Br
O
Ni
Why don't you have to know the trend for Zeff when traveling up or down a family?
The Zeff stays constant.
The noble gas shield remains constant.
The Zeff increases because size increases.
The Zeff both increases and decreases.
What remains constant?
Zeff from left to right
Zeff from right to left
Shielding from left to right
Shielding from top to bottom
What is the Zeff for Nb (#41)? +_
6
5
4
3
Zeff decreases from right to left.
true
false
As the effective nuclear charge decreases, size ________
increases
decreases
What is the effective nuclear charge of aluminum (#13)?
Zeff of aluminum is +_.
4
3
2
1
Which element has the greatest Zeff?
Cs (#55)
K (#19)
Fe (#26)
Cd (#48)
Z effective increases from left to right.
true
false
Z effective can best be described as:
the pulling power of the nucleus on the valance electrons
the charge of an atom
the effect the atom has on other atoms
the size of an atom
Which element has the lowest effective nuclear charge?
Ta (#73)
S (#16)
Y (#39)
Ba (#56)
Shielding remains constant across a period from left to right, but not right to left.
true
false
As the effective nuclear charge increases, atomic size _____.
increases
decreases
Sheilding is constant from bottom to top.
true
false
Why do atoms get bigger as you travel DOWN a family?
the principal energy level increases
the atoms get heavier, so they get bigger
Zeff gets bigger so atoms get bigger
Of these four elements, which has the LARGEST atomic radius?
Potassium
Calcium
Rubidium
Strontium
Why do atoms get smaller from left to right ACROSS a period?
The mass decreases, so the atoms get smaller.
There are less electrons as you go from left to right, so the atoms get smaller.
Atomic size remains constant across a period.
Zeff increases and pulls the electrons closer.
When an atom loses electrons, its radius gets smaller.
true
false
Atomic size generally ____.
remains constant within a period
increases as you move from left to right across a period
decreases as you move from top to bottom within a group
decreases as you move from left to right across a period
For Group 3A metals, which electron is the most difficult to remove?
first
second
third
fourth
The same amount of energy is required to remove each electron sequentially from an atom.
true
false
Which of the following elements has the smallest ionization energy?
sodium (#11)
calcium (#20)
potassium (#19)
magnesium (#12)
For Group 1A metals, which electron is the most difficult to remove?
1st
2nd
3rd
4th
Which element has the highest first ionization energy?
O
P
N
S
Of the following elements, which one has the smallest first ionization energy?
silicon
aluminum
carbon
boron
Ionization energy decreases from top to bottom.
true
false
Ionization energy increases from left to right because atoms get bigger from left to right.
true
false
Which element will need more energy to take away an electron?
Zr
Tc
Ag
Which has the highest ionization energy in the second family?
Be
Mg
Ca
Sr
Ionization energy decreases as size gets bigger.
true
false
Which element has the lowest first ionization energy?
Rb
Sr
Cs
Ba
Ionization energy increases from left to right.
true
false
Ionization energy increases from top to bottom.
true
false
Metals tend to gain electrons therefore are more electronegative.
true
false
Non-metals are more electronegative than metals.
true
false
Of these four elements, which has the highest electronegativity value?
N
F
C
O
Of these four elements, which has the LOWEST electronegativity value?
Cl
Al
In
Sr
Compared with the electronegativities of the elements on the left side of a period, the electronegativities of the elements on the right side of the same period tend to be ____.
lower
the same
unpredictable
higher
Which statement is true about electronegativity?
Electronegativity generally increases as you move from top to bottom within a group.
Electronegativity generally is higher for metals than for nonmetals.
Electronegativity is the ability of an anion to attract another anion.
Electronegativity generally increases from left to right across a period.
Of these four elements, which has the highest electronegativity value?
O
s
Se
Te
Of these four elements, which has the LOWEST electronegativity value?
Ba
Br
As
Bi
