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Entry task Block #1 Nov 19 th -20 th. *Grab Ions and Formulas ws (Lab area) *Periodic Tables. Agenda:. Discuss Ions to formulas ws In-Class Ch. 8 Review sheet To know list. Work on this and come up for help if you need it!!!. Ions to formulas answers. Ions to formulas answers.
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Entry task Block #1 Nov 19th-20th *Grab Ions and Formulas ws (Lab area) *Periodic Tables
Agenda: • Discuss Ions to formulas ws • In-Class Ch. 8 Review sheet • To know list
What is a chemical bond? (3 pts) • A force that holds2 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) • Oxygen gains both of those electrons becoming a -2 charge. • 2 Lithium atoms loses their valence electron becoming +1 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 H2O) • Solids at room temperature • Brittle (not malleable)
What is lattice energy? (3pts) • Energy needed to separateions from its compound.
Which compound would have more lattice energy- NaCl and AlCl3? Explain your reasoning. (2 pts) • AlCl3 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) Fe2(SO3)3________________(H3O)3BO3________________Hg3(PO4)2________________Cu2CO3________________Al(NO3)3________________ Iron III sulfite Hydronium borate Mercury II 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 Bi2(CrO4)3 Fe(OH)3 (H3O)3P Cu2SeO4
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%
In the periodic table, the elements are arranged in __________. 30 • alphabetical order • order of increasing atomic number • order of increasing metallic properties • order of increasing neutron content 0
Elements __________ exhibit similar physical and chemical properties. 30 • in the same period of the periodic table • on opposite sides of the periodic table • in the same group of the periodic table • with similar atomic masses 0
Which pair of elements would you expect to exhibit the greatest similarity in their physical and chemical properties? 30 • H, Li • C, O • Ga, Ge • Cs, Ba 0
Which one of the following is a nonmetal? 30 • W • Sr • Os • S 0
Potassium is a __________ and chlorine is a __________. 30 • metal, nonmetal • metal, metal • metal, metalloid • metalloid, nonmetal 0
How many valence electrons does Aluminum have? 30 • 5 • 3 • 7 • 13 0
How many valence electrons does Barium have? 30 • 1 • 2 • 3 • 4 0
Metals tend to __________ electrons and cations tend to __________ electrons. 30 • gain, gain • lose, lose • gain, lose • lose, gain 0
Anions tend to be __________ and cations tend to be __________. 30 • Metal, metal • nonmetals, nonmetals • metals, nonmetals • nonmetals, metals 0
Nonmetals tend to be __________ and Metals tend to be __________. 30 • Cations, anions • Anions, cations 0
This is the ion formed from a calcium atom. 30 • Ca+ • Ca2+ • Ca- • Ca2- 0
Barium forms an ion with a charge of __________. 30 • +1 • -2 • +3 • +2 0
Aluminum forms an ion with a charge of __________. 30 • +1 • -2 • +3 • +2 0
Of the following, __________ contains the greatest number of electrons. 30 • P+3 • P • P-2 • P-3 0
Oxygen forms an ion with a charge of __________. 30 • -2 • +2 • -3 • +3 0
Iodine forms an ion with a charge of __________. 30 • -7 • +1 • -1 • +3 0