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Worksheets6.5 Periodic Trends
Total questions: 130
Worksheet time: 2hrs 45mins
Cl or Al?
N or C?
Which of the following is NOT a trend that varies periodically in the periodic table?
Electronegativity
Ionization energy
Symbols of elements
Atomic radius
ability of atom to attract electrons in bond
Electronegativity
Atomic radius
Atomic number
electron affinity
The atomic radius across period
decrease from left to right
Increase from left to right
decrease from right to left
stay the same
As you move down a Group on the periodic table, what happens to the size of the atoms?
they stay the same
they get larger
they get smaller
As you move across a row on the periodic table, what generally happens to the atomic radius?
it decreases
it increases
it stays the same
What property is being measured in this diagram?
Density
Ionization Energy
Atomic Radius
Atomic Mass
Which of the following atoms has the greatest atomic radius?
nitrogen
phosphorus
potassium
cesium
Of the halogens, which has the smallest radius?
F
Br
He
At
Which of the following will have a lower ionization energy than Scandium (Sc)?
Helium (He)
Titanium (Ti)
Calcium (Ca)
Magnesium (Mg)
Which of the following will have a higher electronegativity than arsenic (As)?
Carbon (C)
Neon (Ne)
Antimony (Sb)
Germanium (Ge)
Which of the following halogens has the greatest electronegativity?
Chlorine (Cl)
Bromine (Br)
Iodine (I)
Astatine (At)
Which group of elements has the lowest ionization energies?
Alkali Metals (Group 1)
Alkaline Earth Metals (Group 2)
Halogens (Group 17)
Noble Gases (Group 18)
What is the amount of energy required to remove an electron from an atom?
atomic energy
ionization energy
ionic energy
electron energy
What is one-half the distance between the nuclei of identical atoms that are bonded together?
atomic radius
atomic diameter
atomic width
atomic length
What is a measure of the tendency of an atom to attract a bonding pair of electrons when the atom is in a compound?
ionization energy
electropositivity
electronegativity
electron energy
What is a positively-charged ion which forms when an atom loses electrons?
atom
ion
cation
anion
What is a negatively-charged ion which forms when an atom gains electrons?
cation
anion
electron
ion
What is a vertical (up and down) column in the periodic table?
group or family
period
periodic law
octet rule
In the process of ionization, what is the relationship between the second ionization energy (I2) and the third ionization energy (I3)?
I2 > I3
I2 < I3
I2 = I3
There is no way to predict this relationship.
Looking across period 4 of the periodic table, potassium (atomic number 19) is followed by calcium (atomic number 20), which is followed by scandium (atomic number 21). Which element should have the largest atomic radius?
potassium
calcium
scandium
All three have the same atomic radius.
Consider the group 1A elements sodium (period 3), potassium (period 4), and rubidium (period 5). What would you predict about the ionization energies of these elements?
Na < K < Rb
Na > K > Rb
Rb < Na < K
Na = K = Rb
Which of these elements in group 1A has the largest atomic radius?
cesium
rubidium
potassium
sodium
Which element in period 4 has the highest electronegativity?
potassium
calcium
copper
bromine
Which group 4A element has the highest ionization energy?
carbon
tin
silicon
lead
Consider the group 1A element sodium (atomic number 11), the group 3A element aluminum (atomic number 13), and the group 7A element chlorine (atomic number 17). These elements are in period 3. How are the first ionization energies of these elements related?
sodium > aluminum > chlorine
sodium < aluminum < chlorine
sodium < chlorine < aluminum
sodium > chlorine > aluminum
The sodium atom loses an electron to form a sodium ion (Na+). Which statement is correct with respect to its atomic radius?
The sodium ion has a larger radius than the atom.
The sodium ion has a smaller radius than the atom.
The sodium ion and the sodium atom radii are the same size.
The sodium ion has twice the radius of the sodium atom.
Which property determines an atom's ability to attract electrons shared in a chemical bond?
ionization energy
atomic radius
electronegativity
ionic radius
Which group 2A element has the largest ionic radius?
magnesium
calcium
barium
radium
Of the halogens, which has the smallest radius?
F
Br
He
At
Which of the following will have a lower ionization energy than Scandium (Sc)?
Helium (He)
Titanium (Ti)
Calcium (Ca)
Magnesium (Mg)
Which of the following will have a higher electronegativity than arsenic (As)?
Carbon (C)
Neon (Ne)
Antimony (Sb)
Germanium (Ge)
Which of the following halogens has the greatest electronegativity?
Chlorine (Cl)
Bromine (Br)
Iodine (I)
Astatine (At)
Which group of elements has the lowest ionization energies?
Alkali Metals (Group 1)
Alkaline Earth Metals (Group 2)
Halogens (Group 17)
Noble Gases (Group 18)
It is the measure of the mean distance from the center of nucleus to the boundary of the surrounding cloud where the electron revolves.
Electronegativity
Atomic radius
Electron affinity
Metallic property
Given: Na, Cl, Ba, and Al.
Which has the greatest tendency to accept electrons to form negative ions?
Na
Cl
Ba
Al
Given: Al, O, Cl, and N.
Which has the greatest tendency to lose electrons to form positive ions?
Al
Cl
O
N
Which of the following are the characteristics of the most active nonmetals?
Small radii and high ionization energies
Large atomic radii and low ionization energies
Small radii, low ionization energies
Large atomic radii, high ionization energies
The element with the lowest ionization energy in Period 3 is __________________.
Sodium
Chlorine
Magnesium
Argon
Which periodic group has the smallest atomic radius?
Alkali metals
Halogens
Noble gases
Transition metals
The element with the highest electronegativity in the halogens is ________________.
Astatine
Fluorine
Chlorine
Bromine
Which element is the most metallic?
Na
Mg
Cs
Fr
The change of energy accompanies the addition of an electron to a gaseous atom.
Electronegativity
Atomic radius
Electron affinity
Metallic property
Given: At, F, Cl and Br.
Which sets correctly arranged the given elements in order of increasing electron affinity?
At, Br, Cl, F
F, Cl, Br, At
Cl, Br, At, F
Br, At, Cl, F
Electrons fill energy levels and sublevels _____ in energy first.
lower
higher
1s2 2s2 2p6 3s2
Which among the elements has the highest electron affinity?
Chlorine
Tellurium
Germanium
Rhodium
Which among the elements has the greatest electronegativity?
Carbon
Oxygen
Neon
Fluorine
Which group of elements below follows an increasing trend?
V, Ti, Sc, Ca
Tl, In, Ga, Al
Fr, Cs, Rb, K
Ra, Ba, Sr, Ca
Which among the elements has the smallest atomic radius?
Chlorine
Francium
Yttrium
Cobalt
Which among the elements has the lowest metallic property?
Cobalt
Nickel
Copper
Iron
Which element is commonly used for creating can of sardines?
Mercury
Helium
Aluminum
Tin
Which element is commonly used for creating toothpaste?
Mercury
Helium
Aluminum
Fluorine
Which element is commonly used for creating kitchenware?
Mercury
Helium
Aluminum
Chlorine
Which element is commonly used for creating old thermometers?
Mercury
Helium
Aluminum
Fluorine
Which element is commonly used for creating inflated balloons?
Tin
Helium
Chlorine
Fluorine
TRUE or FALSE: Metallic Property increases from right to left across a period.
TRUE
FALSE
TRUE or FALSE: Elements increase in size from left to right across a period.
TRUE
FALSE
TRUE or FALSE: Ionization Energy decreases from left to right across a period.
TRUE
FALSE
TRUE or FALSE: Electron Affinity increases from left to right across a period.
TRUE
FALSE
TRUE or FALSE: Electronegativity decreases from left to right across a period.
TRUE
FALSE
The _____ do not have defined values for electronegativity.
alkaline earth metals
alkali metals
noble gases
halogens
The elements in group 3-12 are the
alkaline earth metals
alkali metals
transition metals
halogens
When electrons that are blocked from the full force of the nucleus' positive charge
shielding
inner transition metals
valence
electronegativity
Tendency for an atom to attract electrons when chemically bonded to another atom.
shielding
valence
ionization
electronegativity
The energy required to remove the 2nd most loosely held electron.
2nd Ionization Energy
1st Ionization Energy
2nd Electonegativity
1st Electronegativity
The anion form of an atom is always ______ than its neutral form.
smaller
larger
the same
unable to tell
The cation form of an atom is always ____ than its neutral form.
smaller
larger
the same
unable to tell
The ___ of an atom is found by measuring the distance between the nuclei of two like atoms and halving the distance.
electronegativity
atomic size
ionic size
ionization energy
Which atom has the smaller atomic size?
As
Br
Which atom has the larger electronegativity?
B
In
Which atom has the larger electronegativity?
Rb
Cs
Which atom has the larger first ionization energy?
Si
Sn
Which atom has the larger first ionization energy?
Ti
Mn
Which atom or ion is larger?
Fe2+
Fe3+
Which atom or ion is larger?
N3-
N
Which atom or ion is larger?
Ca2+
Ca
Which atom or ion is larger?
P2-
P1-
Which atom or ion is larger?
Br1-
Br
Which atom or ion is larger?
Ca2+
Ca
Which atom or ion is larger?
S
S2-
As you move from left to right across the periodic table the size of the atom will
increase
decrease
not change
Within a period the elements will have the same number of occupied _______
orbitals
sublevels
Energy levels
The ionization energy of the elements will _____ as you move down a group on the Periodic table.
increase
decrease
no change
As you move across a period from left to right the electronegativity of an element will _______.
increase
decrease
stay the same
As you move down a group, the electronegativity of an element will ______.
increase
decrease
stay the same
As the negative charge on an ion increases, the size of the atom will ______.
increase
decrease
stay the same
The highest possible value for electronegativity is
4.0
7.0
5.0
8
