Ionic and covalent bonds

Ionic and covalent bonds

Fill in the Blank

Two types of chemical bonds are ________________ and _______________

Ionic Bonds

• occur between a metal and a non metal

• Ions are formed- atoms become charged as they gain or lose electrons

• Metals easily lose electrons

• Nonmetals are electron receptors

• Atoms want to achieve a stable level of valence electrons- usually 8 (2 in the first energy level)

Multiple Choice

What does a metal do?

• It gives electrons easily

• It accepts electrons easily

• It can give or accept electrons easily

• It shares electrons

Multiple Choice

What does a nonmetal do?

• It gives electrons easily

• It gains electrons easily

• It can accept or lose electrons easily

• It shares electrons easily

Covalent bonds

• Occur between two non metals

• May form a new substance if two or more types of atoms are involved

• New substance is called a compound

• Electrons are shared by the atoms to complete their outermost energy level

• Example: CO2, CO, C6H12O6

Multiple Choice

In covalent bonding

• electrons are gained

• electrons are lost

• electrons are shared

• electrons do not move

Multiple Choice

Which type of bonds share electrons

• ionic

• covalent

• metallic

• James