Unit 2- Bonding

Each dot on a dot diagram represents one

• proton

• atomic mass unit

• energy level

• valence electron

Electrons involved in chemical bonding.

• valence

• ionic

• covalent

• metallic

Magnesium bromide is an ionic compound with the chemical formula MgBr₂. What does the "2" tell you?

• There are 2 bromide ions for every magnesium ion

• Bromide has a 2- charge

• Bromide has a 2+ charge

• There are 2 magnesium ions to every bromide ion

What two types of atoms make a covalent bond?

• 2 Nonmetals

• 1 Nonmetal and 1 Metal

• 2 Metals

• 2 Noble Gases

Atoms want

• a full outer shell of electrons

• one electron short of a full shell

• kit kats

• to be loved

Which type of bond forms compounds that are made up of cations and anions?

• ionic
• polar covalent
• nonpolar covalent
• metallic

Which type of bond involves a compound that has low boiling and melting points

• ionic
• metallic
• covalent

What is the proper name for the compound -- N₂O₃

• sodium tetroxide
• dinitrogen trioxide
• binitrogen oxide
• nitrogen(II) oxide

Name the compound KNO₃

• potassium nitrate
• potassium mononitrogen trioxide
• potassium nitroxide
• potassium trioxide

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.