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The Alkali Metals

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kartik Vinayak

on 1 October 2012

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Transcript of The Alkali Metals

The Alkali Metals Group 1 Peter Diller, Raju Dutta, Matthew Vollrath, Gianna Prainito, Chloe Owen, Daniel K-G, Ryan Kessler, Kartik Vinayak. Name:It comes from the greek words "hudor" meaning water and "gennan" meaning generate.
Atomic Number: 1
Atomic Weight: 1.00794
Location: Group 1 Period 1
Melting Point: 13.81
Boiling Point: 20.28
Density: .0899
Ionization Energy: 1310 kJ/mol
Electronegativity: 2.1 Hydrogen Electron Configuration: 1s1
Physical State: Hydrogen is a colorless gas.
Atomic Radius: .79
Ionic Charge Oxidation State: +1
Common Isotopes: H1, H2, H3
Current Cost: 100g of pure hydrogen for 12$

Discovered by Henry Cavendish in 1766
It can be found in nature in the air
Hydrogen can be used in rocket fuel, and metal refining. Hydrogen Cont. Comes from the word "lithius", meaning stone
Atomic number is 3
Atomic weight is 6.941
Group 1
Period 2
Melting point is 180.5˚C
Boiling point is 1342˚C
Density is .53
Ionization energy is 520.2
Electronegativity is .98 Lithium Electron configuration is 1s2 2s1
Soft, silvery white metal
Atomic radius is 155
Ionic charge oxidation state is 4v20
Common isotopes are 7Li
Discovered in 1817 in Sweden by Arfvedson
Not found in nature
Common ores or compounds are igneous rocks and salts from mineral springs
It is used in things like batteries and medicines Lithium (Continued) Sodium Name: English soda (Na2CO3) from the Latin word natrium (sodium)
Atomic Number: 11
Atomic Weight: 22.98977
Period 3
Group 1
Melting Point: 97.72 °C
Boiling Point: 883 °C Density: 0.97
Ionization Energy: 495.6
Electronegativity: 0.93
Ionic Charge Oxidation State: Na+1 More about Sodium Electron Configuration: [Ne]3s1
Sodium is soft and silvery white
Atomic Radius: 186
Common Isotopes: 23Na
Discovered: in 1807 by Sir Hemphry Davy
Current Cost: $25 per 100g
Source: in nature
Uses: it is a heat transfer agent, modify alloys, medicine, agriculture
Sodium is highly reactive and can be cut with a butter knife Potassium (K)
The Basic Facts Location: s-block; Group 1, Period 4
Atomic Number: 19
Atomic Weight: 39.0983amu
Melting Point: 336.53K (63.38oC, 146.08oF)
Boiling Point: 1032K (759oC, 1398oF)
Density: 0.89g/cm3 at room temperature
Electron Configuration: [Ar] 4s1
Common uses: Fertilizers, soap and glass
Appearance: Solid at room temp., soft, waxy, silvery-white
Discovery: By Sir Humphry Davy in 1806, isolated in 1807

http://education.jlab.org/itselemental/ele019.html http://chemistry.about.com/od/elementfacts/a/potassium.htm Potassium (K)
Some Less Basic Facts Electronegativity: 0.82 pauling's
Atomic Radius: 235pm
Ionization Energy: 418.5 KJ/mol
Common ores or compounds: KO2, KOH, NaK, KHCO3
Location in Earth: Found in Earth's crust
Cost: $100/100g
Common isotopes: K-39, K-40, K-41
Ionic Charge Oxidation State: K+1
Some cool facts: Name came from word "potash", never found free in nature, and is very reactive Rb
Rubidium Rubidium was discovered in 1861 by Gustav Kirchoff and Robert Bunsen when they extracted all known components from Lepidolite Ore and burned the remaining substance over a Bunsen Burner. They examined the flame through a spectroscope and noticed 2 red lines in the outermost portion of the visible spectrum. They named it Rubidium, after the Latin word rubidius meaning deepest red. Data Bank:
•Atomic Number 37
•Atomic mass: 85.4678 amu
•5th Period on Periodic Table•Melts @ 39.30C
•Boils @ 690C
•Density: 1.532
•First Ionization Energy: 403kJmol
•Electronegativity: .82 pauling
•Atomic Radius: 248pm
•Oxidation ion: Rb+1
•Common isotopes: Rb74-Rb102 •Melts @ 39.30C
•Boils @ 690C
•Density: 1.532
•First Ionization Energy:
•Current Cost: $1200 per 100g
•Geographic Source: Southwest Virginia
•Common Rb-containing ores: Lepidolite Latin: caesius="sky blue"
Atomic Number: 55
Atomic Weight: 132.9054
Location on Periodic Table: Group 1. Period 6
Melting Point: 301.54 K
Boiling Point: 944 K
Density: 1.87 g/cm3
Ionization Energy: 9.394
Electronegativity: 1.65
Electron Configuration: [XE] 6s1 Cesium Physical State/Appearance: Liquid at room temp./silvery gold
Atomic Radius: 265pm
Ionic Charge Oxidation State: 1
Common Isotopes: cesium 133, 134, 135, 137
Current Cost: 10 dollars per gram
Discovery: 1860
Geographical Source: Canada
Common Ores or Compounds: Cesium hydroxide
Practical Uses: Atomic Clocks
Unique Fact: It is slightly toxic Cesium... atomic #-87
atomic weight- 223
location on periodic table- period 6, group 1
melting point-300K
boiling point-950K
density- unknown
ionaztion energy- 1st 380 kj mol-1
electronegativity- 0.7
electron configuration- .7
atomic radius- unknown FRANCIUM current cost- can't be sold
discovery- 1939 by marguerite perry
geographical source- earth's crust
practical uses- Francium is extremely radioactive and is used for research purposes. FRANCIUM CONTINUED...
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