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WorksheetsChapter 4 Chemical Bonds
Total questions: 30
Worksheet time: 45mins
polyatomic ions
The transfer of Valence electrons from a metal to a non metal is known as
Covalent Bonding
Metallic bonding
Molecular bonding
Ionic Bonding
Ionic bonds are formed when electrons get
Shared between two atoms
Removed from both atoms
Transferred from one atom to another
Added to both atoms
Why do elements form chemical bonds?
Because they're neutral
To create a new element
To become stable
Because they all need to gain more electrons
An ionic bond is the attraction between a positive and negative ion.
True
False
When an atom loses or gains electrons, what is formed?
Protons
Irons
Ions
Noble Ions
when it has a half full valence electron shell
when it has a full valence electron shell
when it has an empty valence electron shell
when its protons equal its neutrons
Why do all bonds form?
so the number of protons equals the number of electrons
so an atom can become unstable
to fill the outermost energy level
so the number of protons equals the number of neutrons
An atom with 1 valence electron 'needs' a full shell, so it can either gain 7 electrons or lose 1. Which is more likely to occur?
nothing
gain 7
lose 1
lose 7
How do covalent bonds form?
Donating & receiving valence e- between atoms.
Opposite slight charges attract each other between compounds.
Scientists are still not sure how they form.
Sharing valence e- between atoms.
What two types of atoms make a covalent bond?
2 Nonmetals
1 Nonmetal and 1 Metal
2 Metals
2 Noble Gases
What is the correct name for C4H6?
Carbon Hexahydride
Pentacarbon Pentahydride
Hexacarbon Tetrahydride
Tetracarbon Hexahydride
What is the correct name for NO?
Mononitrogen Monoxide
Nitrogen Monoxide
Mononitrogen Dioxide
Nitrogen Oxide
What is the formula for Tricarbon Octahydride?
Ca3O
C2H8
C3H8
Ca3H8
What is Sulfur Trichloride?
SCl3
SiCl3
SCl4
Si3Cl
Phosphorous trichloride
PCl3
P3Cl
P3Cl3
PCI
P2O5
Phosphorus Oxide
Pentaphosphorus Dioxide
Diphosphorous pentoxide
Phosphoric Oxygen
PBr5
Phosphorus Bromide
Phosphorus Pentabromide
Pentaphosphorus bromide
Phosphorus Bromine
As4O10
arsenic oxide
quadarsenic decoxide
tetraarsenic decoxide
arsenic decoxide
A covalent compound made of one sulfur and two oxygen atoms would be named
sulfur dioxide.
sulfur oxide.
disulfur oxide.
sulfide oxygen.
The covalent compound N2O5 would be named
nitrogen oxide.
dinitrogen oxide.
nitrogen pentoxide.
dinitrogen pentoxide.
Disulfur trioxide
S3O2
SO
S2O3
S2O
The covalent compound N2O5 would be named
nitrogen oxide.
dinitrogen oxide.
nitrogen pentoxide.
dinitrogen pentoxide.
Bromine monofluoride
Br1F1
BrF
Br2F
BrF2
