BJ Chem Ch 5 Pt1 Sec AB
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Developer of Triads concept:1829 A triad: like Cl, Br, and I Problem: more than 3 elements w/ similar properties | Johann Dobereiner
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| Developer of Law of Octaves :1864 Used atomic masses Found every 8th element similar Ridiculed for music/science comparison | John Newlands
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| Russian scientist credited with development of modern periodic table1834-1907)ridiculed 5 yrs until predicted element discovered, included transition metals | Dmitri Ivanovich Mendeleev
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| Englishmen whose work led to revision of periodic table based on atomic number 1912 | Henry Moseley
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| German scientist who made a table similar to Mendeleev's table but published later | Lothar Meyer
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| A column of elements, which has similar electron configurations, is called a ________ | family or group
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| A row of elements is called a _______ | period or series
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| Elements which are usually hard, lustrous, malleable, ductile, and conduct electricity are called _____________ | Metals
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| Elements having characteristics of both metals and nonmetals are called ____________ | Metalloids
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| metall- is Greek for | metal
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| -oid is Greek for | like
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| Generally soft solids or gases are called ____ | Nonmetals
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| The lanthanide series fits into the table immediately after the element _________ | lanthanide
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| The actinide series fits into the table after the element _______ | actinide
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| The lanthanide and actinide series are called the __________ _____________ _________ | inner transition metals
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| The periodic table convention using numbers 1-18 to label columns is the _______ convention | IUPAC for International Union of Pure and Applied Chemistry
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| The periodic table convention used in the BJ book which uses Roman numbers and and 'A' or 'B' to label columns is the _______ ________ convention | North American Convention
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| This convention is similar to the North American Convention but with different A and B designations | European Convention
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| Columns 1A and 2A comprises the ____-block referring to electron configurations | S
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| Columns 3A through the noble gases comprises the ___-block | P
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| The inner transition metals comprise the ___-block | F
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| The transition metals comprise the ___-block | D
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| Which element has the electron configuration 1s2 2s2 2p6 3s2 3p6 4s2 ? | Ca
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| Measure of size of radius of an atom | atomic radii
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| In a period, going left to right, the atomic radii (Choose one: decreases, increases) | decreases - increased nuclear + charge but no additional shielding energy level
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| In a column, going top to bottom, the atomic radii (Choose one: decreases, increases) | increases - additional shielding energy level
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| The amount of energy needed to rip off an electron is called the ________ ________ | ionization energy
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| T or F: The first ionization energy is less than the second ionization energy | False
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| T or F: The ease with which a neutral atom gains or loses an electron is not important in chemical reactions | False
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| In a period, going left to right, the ionization energy (Choose one: decreases, increases) | Increases - more difficult to remove an electron that is more strongly attracted to a more highly charged nucleus
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| In a column, going top to bottom, the ionization energy (Choose one: decreases, increases) | decrease - electrons in higher energy level is further away, outer lectrons somewhat shielded from the + charge of the nucleus
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| A large atomic radius means a (Choose one: large, small) ionization energy | small
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| A large ionization energy means a (Choose one: large, small) atomic radius | small
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| The element with the largest ionization energy but the smallest atomic radius. | He
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