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WorksheetsGCQ: Covalent Bonding
Total questions: 18
Worksheet time: 14mins
This type of bonding occurs when atoms share electrons.
chemical
covalent
ionic
metallic
Single bonds are formed when ____ pair(s) of valence electrons are shared.
one
three
two
four
What holds the atoms together in a covalent bond?
The attractions between the protons and neutrons.
Attractions between the shared protons.
Attractions between the shared electrons and protons.
Ionic valence electron transfer.
In general, elements at the top of a group have a greater attraction for electrons than
alkali metals.
alkaline earth metals.
elements at the bottom of a group.
elements on the right side of a group.
Which is the correct molecular structure for carbon dioxide?
Silicon dioxide is the compound in sand. What is its formula?
SO2
NaO2
SiO2
SiO
What is the formula for diphosphorus pentoxide?
P2O5
PO5
P5O2
P2O6
Under what conditions do covalent bonds form?
One atom has a high ionization energy and the other has a low electron affinity.
One atom has a low ionization energy and the other has a low electron affinity.
Both atoms have low ionization energies.
Both atoms have high electron affinities.
As a neutral atom, oxygen has the electron configuration of 1s22s22p4. Which of the following best describes what happens when oxygen fills its p-sublevel when it bonds with another atom?
The atom becomes less stable due to possessing low energy.
The atom gains energy and becomes less stable.
The atom releases energy and becomes more stable.
The atom becomes more stable by ionizing.
How are the number of atoms determined (i.e. subscripts) in a chemical formula for a molecular compound?
By charge.
By the prefix in the name.
From the periodic table.
From the number of neutrons.
