Question

worksheet: chemical bonding - ionic vs covalent!
remember...
ionic bond between a metal and a nonmetal (m+nm)
covalent bond between a nonmetal and a nonmetal (nm+nm)
directions: determine if the elements in the following compounds are metals or nonmetals. decide whether the bond is ionic or covalent.

Explanation:

Step1: Identify elements in NaCl

Na (Sodium) is a metal (M), Cl (Chlorine) is a non - metal (NM).

Step2: Determine bond type for NaCl

Since it is between a metal and a non - metal (M + NM), the bond type is ionic.

Step3: Identify elements in SO₂

S (Sulfur) is a non - metal (NM), O (Oxygen) is a non - metal (NM).

Step4: Determine bond type for SO₂

Since it is between two non - metals (NM+NM), the bond type is covalent.

Step5: Identify elements in PI₃

P (Phosphorus) is a non - metal (NM), I (Iodine) is a non - metal (NM).

Step6: Determine bond type for PI₃

Since it is between two non - metals (NM+NM), the bond type is covalent.

Step7: Identify elements in MgBr₂

Mg (Magnesium) is a metal (M), Br (Bromine) is a non - metal (NM).

Step8: Determine bond type for MgBr₂

Since it is between a metal and a non - metal (M + NM), the bond type is ionic.

Step9: Identify elements in CaO

Ca (Calcium) is a metal (M), O (Oxygen) is a non - metal (NM).

Step10: Determine bond type for CaO

Since it is between a metal and a non - metal (M + NM), the bond type is ionic.

Step11: Identify elements in H₂O

H (Hydrogen) is a non - metal (NM), O (Oxygen) is a non - metal (NM).

Step12: Determine bond type for H₂O

Since it is between two non - metals (NM+NM), the bond type is covalent.

Step13: Identify elements in K₂O

K (Potassium) is a metal (M), O (Oxygen) is a non - metal (NM).

Step14: Determine bond type for K₂O

Since it is between a metal and a non - metal (M + NM), the bond type is ionic.

Step15: Identify elements in AlF₃

Al (Aluminum) is a metal (M), F (Fluorine) is a non - metal (NM).

Step16: Determine bond type for AlF₃

Since it is between a metal and a non - metal (M + NM), the bond type is ionic.

Answer:

Compound	Element 1 (Metal or NonMetal)	Element 2 (Metal or NonMetal)	Bond Type
SO₂	S = NM	O = NM	covalent
PI₃	P = NM	I = NM	covalent
MgBr₂	Mg = M	Br = NM	ionic
CaO	Ca = M	O = NM	ionic
H₂O	H = NM	O = NM	covalent
K₂O	K = M	O = NM	ionic
AlF₃	Al = M	F = NM	ionic