Bonding Review Lewis Structures and Electronegativity

Which part of the atom is responsible for chemical bonding?

• Core Electrons

• Valence Electrons

• Protons

• Neutrons

Use your knowledge and electronegativity sheet to predict what type of bond would form between calcium and bromide?

• Non polar Covalent

• Polar Covalent

• Ionic

• Metallic

The electronegativity difference between C and H is:

• 0.4

• -0.4

• 1.7

• 5.9

In a polar covalent bond, electrons are shared _________________.

• between two metals

• equally

• unequally

• between a metal and a non metal

Use your knowledge and electronegativity sheet to predict what type of bond would form between phosphorus and fluorine

• Ionic

• Polar Covalent

• Non polar Covalent

• Metallic

Using your electronegativity handout and the types of atoms involved predict. What type of bond would form between F and Cl?

• Non polar Covalent

• Polar Covalent

• Ionic

• Metallic

The electronegativity difference between C and Cl is ______, so it would be a _______________ bond

• 0.5 polar covalent

• 0.5 nonpolar covalent

• 0.5 ionic

• none of these is correct

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.

According to the octet rule most elements need _______ valence electrons.

• 2
• 8
• 6
• 18

Hydrogen needs _____ electrons in its valence shell to be stable.

• 4
• 6
• 8
• 2