Entry task Block #1 Nov 19 th -20 th Break out your periodic table and get your papers signed off

Agenda: Discuss Ions to formulas ws In-Class Ch. 8 Review sheet To know list If there is time- Ionic battleship

Work on this and come up for help if you need it!!!

Ions to formulas answers

Ch. 8 Review sheet- answers

What is a chemical bond? (3 pts) A force that holds 2 or more atoms together.

Why do ions form? (2 pts) They lose or gain electrons to have a stable electron arrangement.

What family of elements is relatively unreactive and why? (2 pts) Noble Gases are unreactive because they have a filled valence orbit.

Describe the formation of cation. (2 pts) Atoms lose their valence electrons becoming a positive charge.

Describe the formation of anion. (2 pts) Atoms gain electrons becoming a negative charge.

Explain the formation of the ionic compound composed of lithium and oxygen. (4pts) 2 Lithium atoms loses their valence electron becoming +1 charge. Oxygen gains both of those electrons becoming a -2 charge. They fill create a stable orbital arrangement Cancel each other charges out.

Provide the 5 properties of an Ionic substance. (5 pts) High melting point Dissolves in water Conductive (after being dissolved in H 2 O) Solids at room temperature Brittle (not malleable)

What is lattice energy? (3pts) Energy needed to separate ions from its compound.

Which compound would have more lattice energy- NaCl and AlCl 3 ? Explain your reasoning. (2 pts) AlCl 3 would need more energy because it has 3 electrons being transferred which would need more energy to pull them apart.

What is the difference between a formula unit, and crystal lattice (3 pts) Formula Unit is the simplest form of an ionic compound- NaCl. Crystal Lattice is the repeating formula unit forming a lattice. NaClNaClNaClNaCl NaClNaClNaCl NaClNaClNaClNaCl NaClNaClNaCl

Define oxidation number. (1pt) The charge on an ion.

What is the difference between a monatomic ion and a polyatomic ion? (4 pts) Monatomic ion is a one atom ion. Polyatomic ion is a 2 or more atoms that are covalently bonded that carry a charge.

For the following formula, provide the correct names (5 pts) Fe 2 (SO 3 ) 3 ________________ (H 3 O) 3 BO 3 ________________ Hg 3 PO 4 ________________ Cu 2 CO 3 ________________ Al(NO 3 ) 3 ________________ Iron III sulfite Hydronium borate Mercury I phosphate Copper I carbonate Aluminum nitrate

For the following names, provide the formula (5 pts) Gallium cyanide _________________ Bismuth III chromate ______________ Iron III hydroxide _________________ Hydronium phosphide______________ Copper I selenate_________________ Ga(CN) 3 Bi 2 (CrO 4 ) 3 Fe(OH) 3 (H 3 O) 3 P Cu 2 SeO 4

To Know List- Ch. 8 Test Concentration of MOSTLY Ch. 8 (75%) –Why bond? –Ionic substances- properties –Naming ionic substances –Providing the formula –Transitional metals- ROMAN NUMERALS –Metallic bonds- properties –Alloys- maybe 3 questions on it

To Know List- Ch. 8 Test Concentration of MOSTLY Ch. 8 (75%) –Periodic trends- Ionization energy Electronegativity Size of atoms verse ions –Energy levels-light, E-dot/valence-Ch. 5 –Particles- Protons, Electrons Neutrons-Ch. 4 –Physical chemical properties/changes-Ch. 3 –Scientific notation and Significant Figs- Ch. 2 25%

STUDY for P of U Ch. 2-8