Alkaline Earth Metals By: Matt Case, Davis Todd, CC Smith, Diamond Henderson, and Travis Monet

Beryllium Parents: Louis-Nicholas Vauquelin Birth Date: Discovered in 1798 Gender: Metal Color: steel gray

Physical Descriptions: # of Protons:4 # of Electrons:4 # of Neutrons: 5 Density: 293 K: 1.848 g/cm3 Boiling point: 2742 K (2469 Celsius) Melting point: 1551.2 K   (1278 Celsius) Specific heat capacity: 1.82 J g-1 K-1 Electrical conductivity: 0.25 x 106 S cm-1

Chemical Description Oxide(s): BeO3 Chloride(s): BeCl2 Valance #:2 Ion: Be +2 Oxidation #: Minimum- 0, Maximum- 2 Harmful effects: Beryllium and its salts are both toxic and carcinogenic. Uses: Beryllium alloys are used in the aerospace industry as light-weight materials for high performance aircraft, satellites and spacecraft Compounds Oxide(s): BeO3 Chloride(s): BeCl2 Hydride(s): BeH2 Reactions Reaction with air: vigourous, w/ht BeO, Be3N2 Reaction with 6 M HCl: mild H2 Reaction with 15 M HNO3: none Reaction with 6 M NaOH: mild H2, [Be(OH)4]2

Magnesium! Magnesium was first discovered by Joseph Black, in 1755 Magnesium and calcium were thought to be the same element Magnesium is a Alkaline Earth Metal, and silvery-gray in color.

Magnesium! Magnesium has 12 protons, neutrons, and electrons. Its density is 1.738 g/cm3. Magnesium reacts with hydrogen to produce hydrogen gas. Since it is 2/3 of aluminum's density, alloys of magnesium are used in the construction of cars, missiles, and airplanes.

Magnesium! Magnesium is highly combustible, and when lit produces a brilliant white light. Thus it is often used in fireworks or flares. Magnesium also has stool softening qualities, and is used in medications such as “Milk of Magnesia” for self-regulation.

Calcium aka Ca “My name is Humphry Davy and I discovered Calcium in 1808!” “I was born weighing a heavy 1.55 g/cm Davy tells me when I’m really mad I get so hot, he said my boiling point is 1771 K and then when I calm down I get to 1115 K. 3 “I was born in London” And learned from my father that I have metal ruining all through me!

“Students can draw me in different forms, but I’m still Calcium” Different Sides “Students can draw me in different forms, but I’m still Calcium” “I only have 2 for my valence and oxidation #!” Other Compounds: CaO CaCl -CaH 2 2 “There’s 20 Protons, Neutrons, and Electrons that create me” I’m very reactive and like to give my electrons to others 

Bad things?? There’s nothing bad about me I’m Good/Bad Electrical conductivity: 0.313 x 10 s cm Thermal conductivity: 201 W m K 6 -1 -1 -1 “And I’m very important when it comes to Portland and it’s cement!!!” “I’m good when used to make other metals to make Uranium and Thorium” Bad things?? There’s nothing bad about me

WEbsiTe(S) Radium http://www.chemicool.com/elements/radium.html#general Barium http://www.chemicool.com/elements.barium.html Calcium http://www.chemicool.com/elements/calcium.html Magnesium http://www.chemicool.com/elements/magnesium.html Strontium http://www.chemicool.com/elements/strontium.html Beryllium http://www.chemicool.com/elements/beryllium.html

Strontium Strontium was born in Scotland in 1790 by Adair Crawford. He is a metal and has a lot of cousins. It is a metal

Strontium He has 38 protons and electrons with 50 neutrons.

Strontium Boiling point is 1384.0 °C Its melting point is 769.0 °C

Strontium A soft, silvery metal that burns in air and reacts with water.

Strontium It is often used in fireworks and flares and also helps heal bones

Radium Was discovered in 1898 by Marie S. Curie and her husband Pierre.

And its belongs to the Alkali Earth Metals Radium Is a metal! And its belongs to the Alkali Earth Metals

Radium Density: 5.5g/cc @ 300K Boiling Point:1500*C Melting Point: 700*C Specific Heat Capacity: o.12Jg^-1 K^-1 Heat of fusion: 8.5kJ mol^-1

Radium valence # 2 oxidation number: +2 Highly reactive

Radium Can be used as a chemical that glows in the dark

Radium Is highly radioactive and can be very harful if exploded.

Barium Barium was discovered by Sir Humphrey Davy in 1808 in London

Barium Metal And is an Alkali Earth Metal.

Barium

Barium Density: 3.59 g/cm^3 Melting point: 725*C Boiling point:1897*C

Barium Valacne electrons 2 OXD # +2 Highly recative.

Barium Can be used to remove gases form tubes.

Barium Can be very reactive. And can be highly poisonous.