Question

wuhis / conc chem
name
date
per
worksheet: chemical bonding - ionic & covalent!
remember...
ionic bond between a metal and non - metal (m + nm)
covalent bond between a non - metal and non - metal (nm + nm)
part 1: determine if the elements in the following compounds are metals or non - metals. describe the type of bonding that occurs in the compound

Explanation:

Step1: Recall the rules for ionic and covalent bonds

Ionic bond: between a metal and non - metal. Covalent bond: between non - metals.

Step2: Analyze each compound

• NaCl:
• \(Na\) (sodium) is a metal, \(Cl\) (chlorine) is a non - metal.
• Bond type: ionic.
• \(SO_{2}\):
• \(S\) (sulfur) is a non - metal, \(O\) (oxygen) is a non - metal.
• Bond type: covalent.
• \(PI_{3}\):
• \(P\) (phosphorus) is a non - metal, \(I\) (iodine) is a non - metal.
• Bond type: covalent.
• \(MgBr_{2}\):
• \(Mg\) (magnesium) is a metal, \(Br\) (bromine) is a non - metal.
• Bond type: ionic.
• \(CaO\):
• \(Ca\) (calcium) is a metal, \(O\) (oxygen) is a non - metal.
• Bond type: ionic.
• \(H_{2}O\):
• \(H\) (hydrogen) is a non - metal, \(O\) (oxygen) is a non - metal.
• Bond type: covalent.
• \(K_{2}O\):
• \(K\) (potassium) is a metal, \(O\) (oxygen) is a non - metal.
• Bond type: ionic.
• \(AlF_{3}\):
• \(Al\) (aluminum) is a metal, \(F\) (fluorine) is a non - metal.
• Bond type: ionic.
• \(O_{2}\):
• \(O\) (oxygen) is a non - metal (two non - metals).
• Bond type: covalent (non - polar covalent as it's the same element).
• \(CuCl_{2}\):
• \(Cu\) (copper) is a metal, \(Cl\) (chlorine) is a non - metal.
• Bond type: ionic.
• \(NO_{2}\):
• \(N\) (nitrogen) is a non - metal, \(O\) (oxygen) is a non - metal.
• Bond type: covalent.
• \(CO_{2}\):
• \(C\) (carbon) is a non - metal, \(O\) (oxygen) is a non - metal.
• Bond type: covalent.
• \(HF\):
• \(H\) (hydrogen) is a non - metal, \(F\) (fluorine) is a non - metal.
• Bond type: covalent (polar covalent).
• \(Rb_{2}S\):
• \(Rb\) (rubidium) is a metal, \(S\) (sulfur) is a non - metal.
• Bond type: ionic.
• \(NBr_{3}\):
• \(N\) (nitrogen) is a non - metal, \(Br\) (bromine) is a non - metal.
• Bond type: covalent.
• \(Fe_{2}O_{3}\):
• \(Fe\) (iron) is a metal, \(O\) (oxygen) is a non - metal.
• Bond type: ionic.
• \(CCl_{4}\):
• \(C\) (carbon) is a non - metal, \(Cl\) (chlorine) is a non - metal.
• Bond type: covalent.

Answer:

Compound	Element 1 (metal or non - metal?)	Element 2 (metal or non - metal?)	Bond Type
\(NaCl\)	\(Na=\text{metal}\)	\(Cl=\text{non - metal}\)	ionic
\(SO_{2}\)	\(S=\text{non - metal}\)	\(O=\text{non - metal}\)	covalent
\(PI_{3}\)	\(P=\text{non - metal}\)	\(I=\text{non - metal}\)	covalent
\(MgBr_{2}\)	\(Mg=\text{metal}\)	\(Br=\text{non - metal}\)	ionic
\(CaO\)	\(Ca=\text{metal}\)	\(O=\text{non - metal}\)	ionic
\(H_{2}O\)	\(H=\text{non - metal}\)	\(O=\text{non - metal}\)	covalent
\(K_{2}O\)	\(K=\text{metal}\)	\(O=\text{non - metal}\)	ionic
\(AlF_{3}\)	\(Al=\text{metal}\)	\(F=\text{non - metal}\)	ionic
\(O_{2}\)	\(O=\text{non - metal}\)	\(O=\text{non - metal}\)	covalent (non - polar)
\(CuCl_{2}\)	\(Cu=\text{metal}\)	\(Cl=\text{non - metal}\)	ionic
\(NO_{2}\)	\(N=\text{non - metal}\)	\(O=\text{non - metal}\)	covalent
\(CO_{2}\)	\(C=\text{non - metal}\)	\(O=\text{non - metal}\)	covalent
\(HF\)	\(H=\text{non - metal}\)	\(F=\text{non - metal}\)	covalent (polar)
\(Rb_{2}S\)	\(Rb=\text{metal}\)	\(S=\text{non - metal}\)	ionic
\(NBr_{3}\)	\(N=\text{non - metal}\)	\(Br=\text{non - metal}\)	covalent
\(Fe_{2}O_{3}\)	\(Fe=\text{metal}\)	\(O=\text{non - metal}\)	ionic
\(CCl_{4}\)	\(C=\text{non - metal}\)	\(Cl=\text{non - metal}\)	covalent