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BJ Chem Ch 5 Sec AB

BJ Chem Ch 5 Pt1 Sec AB

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