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An electrostatic attraction that forms between atoms when they share or transfer valence electrons
chemical bond
What type of bonding has atoms sharing a sea of electrons?
metallic bonding
Why do chemical bonds form?
Atoms are more stable when bonded together.
A chemical bond formed when when two atoms share electrons.
covalent bonding
Bonding between oxygen and hydrogen is covalent bonding because the elements are both.....
non-metals
Molecules made of two atoms, whether of the same element or different are this type of a molecule.
diatomic molecule
When an atom loses electrons it becomes a positively charged ion called this.
cation
Why does diatomic oxygen form double bonds?
Oxygen needs two additional electrons to complete its octet.
What is the octet rule?
atoms are more stable when 8 electrons are present in the valence energy level
What type of bonding involves the transfer of electrons?
ionic bonding
A structure that is a diagram that shows the covalent bonds and lone electron pairs in a molecule.
Lewis structure
In this type of bond, opposite electrical charges on ions attract each other.
ionic bonding
How do chemical bonds form? (electrons)
atoms can share electrons
How many electrons are in a single dash between two bonded atoms in a Lewis structure?
2
In a molecule of water H2O, Oxygen is much more electronegative than hydrogen. Each bond between oxygen and hydrogen has unequal sharing of electrons and is therefore this type of a bond.
polar covalent
The unequal distribution of electric charge.
polarity
A diatomic molecule of oxygen contains two atoms of oxygen each with equal electronegativity, so equal pull on the shared electrons. The bond would be this type of bond.
non-polar bond
Is an atom with high electronegativity likely to gain or lose electrons?
gain
Name the 7 elements that exist in nature as diatomic molecules.
hydrogen, nitrogen, oxygen, fluorine, chlorine, bromine, iodine
If an atom gains electrons it becomes what we call an anion and has this type of charge.
negative
An ionic bond usually forms between these types of elements.
metal and non-metal
The Lewis dot structure for ionic bonding doesn't just show the dots as electrons, but also includes another quality for each atom.
charge on each atom
Are subscripts or superscripts used to show the number of each atom in a chemical formula?
subscripts
covalent bonds usually occur between what types of elements?
non-metal to non-metal
How many atoms are represented by the formula
H2SO4?
7