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