PCQA lec midterms
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🇬🇧 | 🇬🇧 |
Antoine Lavoiser | 33 chemical elements |
Johann Wolfgang Dobereiner | Grouped it into triads |
Leopold Gmelin | Identified the 10 triads of the periodic table |
Jean-Baptiste Dumas | Described the relationship between various group of materials |
Auguste Kekule | Observed group of carbons |
John Newlands | Arranged the periodic table according to their increasing atomic weight |
Dmitri Ivanovich Mendeleev & Julius Lothar Meyer | Published the periodic law – arrangement is in increasing atomic mass |
Henry Mostly | Arranged the modern periodic table – increasing atomic number |
Alkali Metals | Group IA |
Titanium Subgroup | Group IV-B |
Scandium Subgroup | Group IIIA |
Zinc Group Metals | Group IIB |
Carbon Family | Group IVA |
Alkaline Earth Metals | Group IIA |
Boron Family | Group IIIA |
Energy required to REMOVE ELECTRON to make it POSITIVE. | Ionization Energy |
Energy released when ELECTRON IS ADDED to make it NEGATIVE. | Electron Affinity |
HALF THE DISTANCE between nucleus of 2 atoms. | Atomic Radius |
Ability of an atom to ATTRACT AN ELECTRON to itself. | Electronegativity |
31st most abundant element | Lithium |
Very good reducing agents | Alkali metals |
DOC for mania | Lithium carbonate Li2CO3 |
Lightest metal | Lithium |
Most abundant source of sodium | Halite - Rock salt of NaCl |
Alkalinizing agent in Benedict's solution | Sodium Acetate (NaCH3COO) |
Baking soda, sal de vichy, soda saleratus | Sodium Bicarbonate (NaHCO3) |
Cathartic/laxative, treatment of cystitis, urinary acidifier | NaH2PO4 (Fleet enema) Monobasic Sodium Phosphate |
Also known as Leucogen, most powerful preservative | NaHSO3 (Sodium Metabisulfate) |
Antidote for Ag poisoning | NaCl (Sodium Chloride) |
Alkalinizer, buffer, diuretic, expectorant, anticoagulant, use in Denige's test | NaC6H5O3 (Sodium Citrate) |
Also known as soda ash, manufacturers of glass, paper, and detergents | Na2CO3 (Sodium Carbonate) |
Alkalinizer, buffer, diuretic, expectorant, anticoagulant, used in Denige's test | NaC6H5O3 (Sodium Citrate) |
2% solution of this is used as an anti-cariogenic and for dental fluorosis | NaF (Sodium Fluoride) |
A saponifying agent, AKA sosa or lye | NaOH (Sodium Hydroxide) |
Bleaching and disinfecting agent, AKA Dakin's solution | NaOCl (Sodium Hypochlorite) |
Tx to overdose of class 1 antiarrythmics | C3H5NaO3 (Na Lactate, Sodium Lactate) |
Antidote for CN poisoning, vasodilator | NaNO2 (Sodium Nitrite) |
AKA photographer's hypo, prismatic rice, Immediate antidote for CN poisoning, cathartic | NaS2O3 (Sodium Thiosulfate) |
Preservative, AKA Chile Salt Peter or Peru salt peter | NaNO3 (Sodium Nitrate) |
Cathartic, AKA Glauber's salt | Na2SO4 (Sodium Sulfate) |
Prime standard of Karl Fischer titration | Na2C4H4O6 (Sodium Tartrate) |
Flame test of K | Violet |
Sources of K | Sylvite, Carnalite, Alunite |
Diuretic, urinary alkalinizer, antacid | KCH3COO- (Potassium Acetate) |
Laxaative, AKA Cream of tartar, creamor | KHC4H4O6 (Potassium bitartrate) |
Oldest anti-seizure agent, antidepressant | KBr (Potassium Bromide) |
Used in manufacturing of glass, AKA potash | K2CO3 (Potassium carbonate) |
Component of toothpaste, gargles mouth washes due to its oxidizing cleaning, deodorant action | KClO3 (Potassium Chlorate) |
10% of this is used in lethal injection, causes hyperkalemia | KCl (Potassium Chloride) |
KCl antidote | Insulin and NaHCO3 |
Used in submarine/space craft | KO2 (Potassium Superoxide) |