Chapter 3 Test 3.1

Links between two or more atoms that hold the atoms together, they are formed when atoms gain or lose electrons or when they share electrons

Compounds such as water in which two atoms share a pair of electrons, combine to form molecules. Bound together by sharing one or more pair of electrons. If atoms share electrons then there cove lent. Form when non-metals atoms bond together by sharing there electrons

Compounds such as table salt, in which oppositely charged ions come together because of mutual attraction. Atoms gain or lose electrons to form ions. They form between Metals and non- metals

Compound that contains one or more atoms. A molecular ion composed of more then one type of atom joined by covenant bonds. “Poly” means many. Ones with 3 elements in a formula, a combonation. Some molecules gain and lose one or more electrons as their atoms combine to form a molecule, when doing this they become a molecular ion (Study pages you got about these for more info)

“2-1 realationship” : H2O would be an example, water is covalent , water is

Sodium chloride

Many common ones, one kind is carbonate CO3,2- helps form a delicate shell of a robins egg, hydroxide cation - OH1

Repeating pattern of positive and negative ions forming an ionic compound. Often used in the ionic compound