Chemical Bonds

What elements generally make an ionic bond ?

• Metal and nonmetal

• 2 or more nonmetals

• 2 or more metals

• 2 elements

An ionic bond is formed when

• Valence electrons are shared.

• Valence electrons surround the cations.

• Valence electrons are transferred between atoms.

• Valence electrons are completely transferred between two metals.

What is a valence electron?

• an electron that is found in the outermost shell of an atom

• an electron found in the innermost shell of an atom

• an electron found in the middle shell

• an electon found in the nucleus

What is the number of valence electrons of Oxygen?

• 1

• 2

• 6

• 8

Predict the bond that will form between Se and Cl

• Ionic-bond

• Covalent-bond

• Metallic-bond

• Hydrogen-bond

What is the charge on a chloride ion?

• -1
• 1
• +2
• +1

How do covalent bonds form?

• Donating & receiving valence e- between atoms.
• Opposite slight charges attract each other between compounds.
• Scientists are still not sure how they form.
• Sharing valence e- between atoms.

What two types of atoms make a covalent bond?

• 2 Nonmetals

• 1 Nonmetal and 1 Metal

• 2 Metals

• 2 Noble Gases

Why don't noble gases form bonds?

• Noble gases do form bonds

• They all have a full octet

• They only bond with each other

What is a cation? 

• a metal with a negative (-) charge

• a non-metal with a negative (-) charge 

• a metal with a positive (+) charge 

• a non-metal with a positive (+) charge