Chemical Bonding Flashcards
(i) lonic Bonding
What happens in an ionic bond?
Electrons are transferred from one atom to another.
(i) lonic Bonding
Which of the following forms ionic bonds?
a. Sodium and chlorine
b. Oxygen and oxygen
c. Carbon and hydrogen
d. Hydrogen and hydrogen
a. Sodium and chlorine
(i) lonic Bonding
Define ionic bonding.
lonic bonding is the transfer of electrons from one atom to another, resulting in the formation of oppositely charged ions that attract each other.
(i) lonic Bonding
What type of elements usually form ionic bonds?
lonic bonds typically form between metals and nonmetals.
(ii) Covalent Bonding
What occurs in a covalent bond?
Electrons are shared between atoms.
(ii) Covalent Bonding
Which of the following molecules contains covalent bonds?
a. NaCl
b. H20
c. CaCl2
d. MgO
b. H20
(ii) Covalent Bonding
Define covalent bonding.
Covalent bonding is the sharing of electron pairs between atoms to achieve stability.
(ii) Covalent Bonding
Give an example of a covalent compound.
water (H2O) and methane (CH4).
(iii) Comparison: lonic vs. Covalent Bonds
Compare ionic and covalent bonds.
lonic Bond: Electrons are transferred, occurs between metals and nonmetals, forms charged ions, high melting and boiling points.
• Covalent Bond: Electrons are shared, occurs between nonmetals, forms neutral molecules, lower melting and boiling points.
(iv) Names and Formulas for lonic Compounds
Write the chemical formula for: Sodium chloride
NaCl
(iv) Names and Formulas for lonic Compounds
Write the chemical formula for: Magnesium oxide
MgO
(iv) Names and Formulas for lonic Compounds
Name the following ionic compounds:
- CaCl2
- Al203
Calcium chloride
Aluminum oxide
