1. Bonding types
Concept:

2. Concept: Bonding Types
Ionic bond
Covalent bond
Ion
Oxidation number
Chemical bonding
Polyatomic ion
molecule

3. Concept: Bonding Types LEQ: How can the periodic table be used to predict ions, oxidation numbers and identify isotopes?
Oxidation numbers
Tells how many electrons an atom has gained, lost, or shared

4. A charged particle that is formed when an atom is gained or lost
Concept: Bonding Types LEQ: How can the periodic table be used to predict ions, oxidation numbers and identify isotopes?
Ions
A charged particle that is formed when an atom is gained or lost
Cation
Atom that gives up an electron, gets a positive charge
Groups IA, IIA, IIIA (13)
Ex. K+, Ca2+, Al3+

5. Ion that has gained an electron, negative charge
Concept: Bonding Types LEQ: How can the periodic table be used to predict ions, oxidation numbers and identify isotopes?
Anion
Ion that has gained an electron, negative charge
Group VA, VIA, VIIA (Pb does not like to share)
Group number – 8
Ex. P3-, O2-, Cl-

6. In ionic bonding, electrons are lost or gained
Concept: Bonding Types LEQ: What are the characteristics of ionic bonding?
In ionic bonding, electrons are lost or gained
Typically occurs between metals and nonmetals
If an element loses electrons, one or more elements must gain an equal number of electrons to maintain a neutral charge of the compound.

7. In covalent bonding, electrons are shared between atoms.
Concept: Bonding Types LEQ: What are the characteristics of covalent bonding?
In covalent bonding, electrons are shared between atoms.
Formed between nonmetals and nonmetals
Many covalent compounds are liquids or gases at room temperature

8. A neutral particle that is formed as a result is a molecule.
Concept: Bonding Types LEQ: What are the characteristics of covalent bonding?
A neutral particle that is formed as a result is a molecule.
Electrons are not always equally shared
These electrons will spend more time at the atom with the larger nucleus

9. Two types of molecules Polar molecule Nonpolar molecule
Concept: Bonding Types LEQ: What are the characteristics of covalent bonding?
Two types of molecules
Polar molecule
A molecule with a slightly positive and slightly negative end
Ex. water
Nonpolar molecule
Electrons are shared equally
Between two identical atoms or symmetric molecules

10. Positively or negatively charged, covalently bonded group of atoms
Concept: Bonding Types LEQ: What are the unique characteristics of a polyatomic ion?
Positively or negatively charged, covalently bonded group of atoms