By:Preante' Whitfield

Alkaline Earth Metals

Beryllium

4 Protons, 4 Electrons, 5 Neutrons

Solid at room temperature

Melting Point: 1287 celcius

Boiling Point: 2970 celcius

Physical Propeties: Hard, Brittle Medal, and Grayish

Chemical Properties: Has 1 isotope, Has an atomic number of 4, and Atomic Weight= 9.01

Uses: cals, gears, and space shuttle

Magnessium

12 protons, 12 electrons, 12 neutrons

solid at room temperature

650 celsisus is melting point, 1091 celsisus is boiling melt

magnessium is silver, dull , and shiny

covered with a thin layer of oxide that helps to attack metal from air, burns bright white flame to give a mixture of magnessium oxide, reactive towards the halogens such as chlorine or bromine.

used fireworks, flash photography, production of uranium out of salt

Calcium

20 Protons, 20 Neutrons, and 20 Electrons

Solid at room temperature

Melting Point: 839.0 celcius

Boiling Point: 1484.0 celcius

Physical characteristics: Solid, Cubic, Relatively soft metal

Chemical characteristics: 6 isotopes, When heated in air/ oxygen it ignites, and highly reactive with acids

Uses: used for earths crust, building stone, and most abundant mineral in the human body

Strontium

50 neutrons, 38 protons and electrons

solid at room temperature

melts at 768.0 Celsius, and boils at 1382 Celsius

Strontium is soft, silver-yellowish, and alkaline- earth metal.

Has an atomic number 38 and mass 87.62

Used for glass for colored t.v., toothpaste for sensitive teeth and for flares/fireworks

Barium

56 protons and electrons, and 81 neutrons

solid at room temperature

melts at 727 Celsius, and boils at 1897 Celsius

Barium is pale yellow, somewhat shiny, and malleable.

It has a very high chemical re-activity to nature, mass of 137.32, and has an atomic number of 56

used for flash getter in vacuum tubes, good absorber of x-rays, and used to produce x-ray images of ints

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