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Chemistry Chp 5

Pretty much everything

International Congress of Chemists Karlsruhe, Germany
Created the first periodic table Mendeleev
arranged atoms by atomic mass Mendeleev
arranged atoms by atomic number Moseley
Moseley's Partner Rutherford
Periodic Law The physical and chemical properties of the elements are periodic functions of their atomic numbers
Proposed the noble gases Ramsay
Ramsay's partner John William Strutt
Discovered Radon Dorn
How many electrons does the S orbital hold? 2
Which orbital holds 14 electrons? the F orbital
Which groups are in the S block? 1 and 2
what are these groups also known as? 1- alkali metals, 2-alkaline earh metals
Which groups are in the D block 3-12
What are thes groups also known as? transitional elements
how many energy levels lower than the period its on is the orbital of the D block? 1
What groups does the P block include? 13-18
what other name can we call the P-block? main-group elements
what other name is group 17 known by? Halogens
what other name is group 18 known by? Noble Gases
what periods are the F block in? 6 and 7
What groups are they wedged between? 3 and 4
What is period 6 of the F block known as? the lanthanides
what is period 7 of the F block known as? the actinides
The Atomic Radius on half the distance between the nuclei of identical atoms that are bonded together
what is the periodic trend of the atomic radius? gets smaller from left to right
what is the group trend of the atomic raduis? gets bigger as we go down
Ionization energy the amount of energy in kJ/mol required to remove an electron to create an ion
Ionization any process that forms an ion
what is the period trend of Ionization energy? Increases from left to right
what is the group trend of IE? decreases from top to bottom
Removing more electrons requires: more energy for each successful electron
Electron Affinity the energy change that occurs when an electron is acquired by a neutral atom
what groups have no electron affinity? 2, 12 and 18
why would Nitrogen (group 15) not have any electron affinity? because it's p orbital is half full
Are second electron affinities positive or negative? Positive
Cation positive ion
Anion negative ion
where are a majority of the Cations? to the left
Where are the anions? to the upper right
Valence electrons electrons available for chemical reaction
Electronegativity the measure of ability of an atom in a chemical compound to attract electrons
who devised electronegativity? Linus Pauling
What element is the most electronegative and what is its value? Fluorine; 4
What is the trends for electronegativity? it gets bigger from left to right and smaller top to bottom
Created by: kyoff