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WorksheetsERHS Chem Chapter 4 - Periodic Table
Total questions: 25
Worksheet time: 27mins
The Modern Periodic Table of Elements is arranged by increasing
atomic mass
atomic number
valence electrons
number of isotopes
What are valence electrons?
The total number of an atom's electrons.
Electrons located on the first energy level.
Electrons not attached to any atom.
Electrons located in the highest energy level.
What category of elements is silicon (Si) a part of?
Metals
Nonmetals
Metalloids
Halogens
Scientists in the future will create new elements that will exist in Period 8 of the Periodic Table that does not currently exist. If a new element was created in Period 8 and Group 1, which properties will it have? (Check ALL Correct Answers)
it will have one of the smallest electronegativity values on the Periodic Table
It will gain electrons when it forms an ion.
It will be classified as a nonmetal
It will have one of the smallest ionization energies on the Periodic Table
It will have one of the smallest atomic radii of elements on the Periodic Table
What is the name of the group that contains the most reactive metals?
Noble gases
Halogens
Alkali metals
Alkaline earth metals
How many valence electrons does an atom of carbon have?
8
4
2
6
Each column in the periodic table is called a:
period
group
cluster
unit
Which group of the periodic table is composed of inert (not reactive) gases?
alkali metals
alkaline earth metals
halogens
noble gases
Which element has two valence electrons that are located in its second energy level?
Beryllium (Be)
Lithium (Li)
Zinc (Zn)
Magnesium (Mg)
What is the name of the group that contains the most reactive nonmetals?
Noble gases
Halogens
Alkali metals
Alkaline earth metals
Which of these elements has the largest atomic radius?
All elements found on the left side of the "zig-zag" line of the Periodic Table have which of the following properties in common?
They conduct heat and electricity
They are all gases
They are brittle and dull
They are radioactive
Electronegativity is...
a measurement of the ability to attract electrons
the ability of an atom to lose electrons
the energy required to remove an electron from a specific atom
the distance electrons are from the nucleus.
The atoms have more mass in the energy levels of the atom.
The atoms have electrons in energy levels farther from the nucleus.
An atom becomes a _________ ion when it gains electrons.
Positive
Negative
Neutral
Valence
An atom becomes a _______ ion when it loses electrons.
Positive
Negative
Neutral
Valence
When an oxygen atom forms an ion, what charge will it have?
+1
-1
+2
-2
If an element has 3 valence electrons, what charge will it have when it forms an ion?
+3
+5
-3
-5
An unknown element gains 3 electrons to the third energy level orbitals of its electron configuration when it forms an ion. What element is this?
Al
As
P
Ga
Which of the elements listed below would have the largest ionization energy?
Sulfur
Iron
Silicon
Chlorine
An element from an alien planet named Marsium forms an ion with a +2 charge but has a very small ionization energy. What is the the best possible location for this element on the Periodic Table?
Group 2, Period 6
Group 2, Period 2
Group 6, Period 6
Group 6, Period 2
What is the combination below that most likely results in an atom that will form a negatively charged ion?
Large Ionization Energy and Large Electronegativity.
Large Ionization Energy and Small Electronegativity.
Small Ionization Energy and Large Electronegativity.
Small Ionization Energy and Small Electronegativity.
If the element Magnesium forms an ion, which of the following occurs?
It loses 2 electrons and forms a +2 ion.
It gains 2 electrons and forms a +2 ion.
It loses 2 electrons and forms a -2 ion.
It gains 2 electrons and forms a -2 ion.
