Worksheets1st Semester final review #3: Periodic Table/Trends
Total questions: 34
Worksheet time: 17mins
Which of the following elements is not a metal?
H
K
Na
Fr
Neutral atoms contain equal numbers of
electrons and neutrons
protons and neutrons
protons and electrons
protons, electrons, and neutrons
What kind of ion will an atom form if it has 6 valence electrons?
+6 ion
-2 ion
+2 ion
-6 ion
What kind of ion will nitrogen form?
+3 ion
-3 ion
-7 ion
-5 ion
An atom of potassium has 19 protons and 20 neutrons. Its mass number is
9
19
20
39
A measure of the ability of an atom in a chemical compound to attract electrons from another atom in the compound is called
electron affinity
electron configuration
electronegativity
ionization potential
Which of the following elements has the lowest electronegativity?
C
F
Li
O
Which of the following elements has the biggest atomic radius?
Al
S
Si
C
All the alkali metal elements are found on the periodic table in...
Group 1
Group 2
Period 1
Period 2
Which of the following elements has the greatest ionization energy?
Ga
K
Bi
As
Which of the following elements have full outer energy levels?
alkali metals
noble gases
halogens
transition metals
Which of the following elements is most similar in behavior to calcium?
magnesium
sodium
sulfur
chlorine
A horizontal row in the periodic table is called
family
group
octet
period
Compared to a sodium atom in the ground state, a sodium atom in the excited state must have
a greater number of electrons.
an electron with greater energy.
an electron with less energy.
a smaller number of electrons.
An atom of argon tends not to bond with an atom of a different element because the argon atom has —
more protons than neutrons.
a total of eight valence electrons.
more neutrons than protons.
a total of two valence electrons.
Bromine has chemical properties most similar to —
mercury
krypton
potassium
fluorine
A sample of an unknown element exhibits the following properties.
• Exists naturally as a diatomic gas
• Easily forms anions by accepting 1 electron
• Reacts violently with alkali metals
To which chemical family does this element most likely belong?
Metalloids
Alkaline earth metals
Noble gases
Halogens
Which element is a member of the halogen family?
Sulfur
Boron
Potassium
Iodine
Which element is a noble gas?
Er
W
N
Ar
As the elements in Period 2 of the Periodic Table are considered in succession from left to right, there is a decrease in atomic radius with increasing atomic number. This may best be explained by the fact that the —
number of protons decreases, and the number of shells of electrons remains the same.
number of protons increases, and the number of shells of electrons remains the same.
number of protons decreases, and the number of shells of electrons increases.
number of protons increases, and the number of shells of electrons increases.
The characteristic emission (bright-line) spectrum of an element occurs when electrons —
are lost by a neutral atom.
move from lower to higher energy levels.
are gained by a neutral atom.
move from higher to lower energy levels.
An atom in the ground state has a stable octet. This atom could be an atom of —
Cl
Na
Al
Ne
Which sequence of atomic numbers represents elements that have similar chemical properties?
4, 20, 38, 88
3, 12, 21, 40
9, 16, 33, 50
19, 23, 30, 36
Which of the following elements has the lowest electronegativity?
S
Na
Si
Cl
Which of the following elements has the greatest ionization energy?
P
Na
Al
Sb
A horizontal row in the periodic table is called a
family
octet
group
period
Which periodic group or family of elements is not correctly matched with its common family name?
Group 5: alkaline-earth metals
Group 17: halogens
Group 18: noble gases
Group 1: Alkali metals
Which of the following elements is a transition metal?
sulfur
sodium
iron
calcium
Which element family will form +2 ions when they react?
Alkali metals
Alkaline Earth Metals
Halogens
Noble Gases
A measure of how much energy it takes to remove an electron from an atom is called
electron configuration
electronegativity
ionization energy
Which type of element generally has low electronegativity and loses electrons easily?
nonmetals
noble gases
metals
halogens
Which of the following best explains why electronegativity increases across a period?
Atoms gain energy levels
atoms lose valence elcgtrons
atoms get smaller, so the nucleus pulls electrons more strongly
atoms gain neutrons, which pull harder on electrons
Mendeleev organized the chemical elements based on their
charges
atomic numbers
symbols
properties
What was special about Mendeleev's periodic table?
He left gaps for elements that had not yet been discovered
He listed all known elements alphabetically
He included compounds as well as elements
He organized elements into groups of ten
