Covalent Compounds

Sharing is Caring

Summary of ionic compounds

• 1. Electrically neutral – The net charge of the compound is zero

• 2. Formed from Cation(s) & Anion(s)– Electrons are given away or gained

• 3. Metal ion and a Nonmetal ion

• 4. 8 IS GREAT

Binary Covalent Compounds

PRIMARY DIFFERENCES:

•Made up from two NONMETALS

•Electrons are shared to make an Octet

Water Molecule

Covalent bond of Carbon & Hydrogen

Covalent (Molecular) Compounds

• Stay together as molecules

• Are often INSOLUBLE – (won’t dissolve in water or other liquids)

• Do NOT conduct electricity

• Can be solids, liquids or gases at room temperature

• Low melting points

Ionic vs. Covalent

Ionic Compounds• Contain positive and

negative ions (Na+ Cl-) • Solids such as table salt• High melting and boiling

points• Separate into charged

particles in water to give a solution that conducts electricity

Covalent Compounds• Exist as neutral molecules

CO2

• Solids, liquids,or gases• Lower melting and boiling

points• Remain as same

molecule in water and will not conduct electricity

Animation

• http://www.mhhe.com/physsci/chemistry/animations/chang_7e_esp/bom1s2_11.swf