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Test 3 Review Material!. This is the last day before your exam… Study HARD tonight!. Charge of Particles. Which of these particles has a neutral charge? A Photon B Neutron C Proton D Electron. Charge of Particles. Which of these particles has a neutral charge? A Photon
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Test 3 Review Material! This is the last day before your exam… Study HARD tonight!
Charge of Particles Which of these particles has a neutral charge? • A Photon • B Neutron • C Proton • D Electron
Charge of Particles Which of these particles has a neutral charge? • A Photon • BNeutron • C Proton • D Electron
Energy Levels Which of these belongs in the outermost shell (energy level) of an atom? • F Electrons • G Protons • H Neutrons • J Photons
Energy Levels Which of these belongs in the outermost shell (energy level) of an atom? • FElectrons • G Protons • H Neutrons • J Photons
Protons A proton has which of the following charges? • A Negative • B Neutral • C Positive • D Magnetic
Protons A proton has which of the following charges? • A Negative • B Neutral • C Positive • D Magnetic
J.J. Thomson In J.J. Thomson’s “plum pudding” or “blueberry muffin” model of the atom, which particles do the blueberries represent? • F Photons • G Protons • H Neutrons • J Electrons
J.J. Thomson In J.J. Thomson’s “plum pudding” or “blueberry muffin” model of the atom, which particles do the blueberries represent? • F Photons • G Protons • H Neutrons • J Electrons
Charge of neutron The atom is composed of electrons, protons, and neutrons. What is the electric charge on the neutron? • A -1 • B +1 • C 0 • D +2
Charge of neutron The atom is composed of electrons, protons, and neutrons. What is the electric charge on the neutron? • A -1 • B +1 • C 0 • D +2
History of atomic model Which scientist’s model of the atom has electrons randomly orbiting a positively charged nucleus? Based on his gold foil experiment, he also proposed that the atom is mostly empty space. • F Ernest Rutherford • G Neils Bohr • H John Dalton • J J.J. Thomson
History of atomic model Which scientist’s model of the atom has electrons randomly orbiting a positively charged nucleus? Based on his gold foil experiment, he also proposed that the atom is mostly empty space. • FErnest Rutherford • G Neils Bohr • H John Dalton • J J.J. Thomson
Number of Protons Which of the following lists the elements in order, from those having the least protons to those having the most protons in their atoms? • A O, N, B, Li • B Na, S, Al, Cl • C Rb, K, Na, Li • D O, S, Se, Te
Number of Protons Which of the following lists the elements in order, from those having the least protons to those having the most protons in their atoms? • A O, N, B, Li • B Na, S, Al, Cl • C Rb, K, Na, Li • D O, S, Se, Te
Protons, neutrons, electrons • Determine the number of • PROTONS • NEUTRONS • TOTAL ELECTRONS • AND…VALENCE ELECTRONS for the element Se
Protons, neutrons, electrons • Determine the number of • PROTONS = 34 • NEUTRONS = 79 – 34 = 45 • TOTAL ELECTRONS = 34 • AND…VALENCE ELECTRONS = 6…BECAUSE IT IS IN GROUP 16! for the element Se
GROUP & PERIOD NUMBERS • What group number is Ca in? • What period number is Ar in?
GROUP & PERIOD NUMBERS • What group number is Ca in? • Group 2! Because it is in the 2nd column • **remember – group = family = column • You stand UP for your family or your group of friends • What period number is Ar in? • Period 3! Because it is in the 3rd row • **Remember** period = horizontal row • You write a sentence from left to right, and punctuate it with a PERIOD………….
Periodic Table Families Which of the following elements belongs to the family indicated? • F Nitrogen belongs to the halogen family. • G Helium belongs to the noble gas family. • H Calcium belongs to the alkali family. • J Sodium belongs to the alkali earth family.
Periodic Table Families Which of the following elements belongs to the family indicated? • F Nitrogen belongs to the halogen family. • G Helium belongs to the noble gas family. • H Calcium belongs to the alkali family. • J Sodium belongs to the alkali earth family.
Atomic Number Which of these elements has an atomic number of 14? • A N • B Al • C Si • D P
Atomic Number Which of these elements has an atomic number of 14? • A N • B Al • CSi • D P
Number of Protons Which of the following elements has 16 protons? • F Oxygen • G Chlorine • H Sulfur • J Germanium
Number of Protons Which of the following elements has 16 protons? • F Oxygen • G Chlorine • HSulfur • J Germanium
Alkali Metals Which element is an alkali metal? • A K • B Mg • C Al • D Ag
Alkali Metals Which element is an alkali metal? • AK • B Mg • C Al • D Ag
Atomic Mass Which of these elements has the greatest atomic mass? • F B • G C • H N • J Al
Atomic Mass Which of these elements has the greatest atomic mass? • F B • G C • H N • JAl
Mendeleev Mendeleev created the first periodic table by arranging elements in order of – • A decreasing atomic mass • B increasing atomic mass • C increasing atomic number • D increasing densities
Mendeleev Mendeleev created the first periodic table by arranging elements in order of – • A decreasing atomic mass • B increasing atomic mass • C increasing atomic number • D increasing densities
Electrons Electrons involved in bonding between atoms are – • F valence electrons • G inside the nucleus • H closest to the nucleus • J positively charged
Electrons Electrons involved in bonding between atoms are – • Fvalence electrons • G inside the nucleus • H closest to the nucleus • J positively charged
Valence electrons What is the greatest number of valence electrons an atom can have? • A 1 • B 3 • C 8 • D 100
Valence electrons What is the greatest number of valence electrons an atom can have? • A 1 • B 3 • C8 • D 100
Periodic table arrangement The modern periodic table is arranged in order of increasing – • F atomic mass • G number of valence electrons • H atomic number • J number of neutrons
Periodic table arrangement The modern periodic table is arranged in order of increasing – • F atomic mass • G number of valence electrons • Hatomic number • J number of neutrons
Number of protons What information in the periodic table indicates the number of protons in an atom? • A The position of the element in its column • B The element’s chemical symbol • C The element’s atomic number • D The element’s atomic mass
Number of protons What information in the periodic table indicates the number of protons in an atom? • A The position of the element in its column • B The element’s chemical symbol • C The element’s atomic number • D The element’s atomic mass
Periodic Table From an element’s location in the periodic table, you can predict – • F its properties • G its chemical name • H its chemical symbol • J when it was discovered
Periodic Table From an element’s location in the periodic table, you can predict – • Fits properties • G its chemical name • H its chemical symbol • J when it was discovered
Columns in periodic table The elements in a column of the periodic table • A are in the same family. • B are in the same period. • C have the same atomic mass. • D have the same chemical symbols.
Columns in periodic table The elements in a column of the periodic table • Aare in the same family. • B are in the same period. • C have the same atomic mass. • D have the same chemical symbols.
Valence electrons Across a period of eight elements in the periodic table, the number of valence electrons – • F is the same for all eight elements. • G is equal to the period’s number. • H depends on the atomic number of the elements. • J increases from 1-8.
Valence electrons Across a period of eight elements in the periodic table, the number of valence electrons – • F is the same for all eight elements. • G is equal to the period’s number. • H depends on the atomic number of the elements. • Jincreases from 1-8.
Valence electrons Which of the following have the same number of valence electrons? • A the elements in a period • B the elements in a group • C the elements having similar atomic masses • D the elements having similar atomic numbers
Valence electrons Which of the following have the same number of valence electrons? • A the elements in a period • Bthe elements in a group • C the elements having similar atomic masses • D the elements having similar atomic numbers
metals Where are metals located in the periodic table? • F to the left of the zigzag line • G to the right of the zigzag line • H in the top rows • J in the middle rows
metals Where are metals located in the periodic table? • Fto the left of the zigzag line • G to the right of the zigzag line • H in the top rows • J in the middle rows
Group titles/names Which elements have 1 valence electron in their atoms? • A transition metals • B halogens • C alkali earth metals • D alkali metals