Group 2 Alkaline Earth Metals

Piper, Cameryn, Billy

Beryllium


Atomic Number:4

Atomic Mass: 9 amu

Atomic Symbol: Be

Uses: An alloying agent in producing beryllium copper, which is extensively used for springs, electrical contacts, spot-welding electrodes and non-sparking tools.

Who discovered it? Louis Nicolas Vanquelin

Number of Valence Electrons: 2

Magnesium

Atomic Number:12

Atomic Mass:24 amu

Atomic symbol:Mg

uses: Duralumin and magnalium are alloys of magnesium. The metal is also used in pyrotechnics, especially in incendiary bombs, signals, and flares, and as a fuse for thermite. It is used in photographic flashbulbs and is added to some rocket and missile fuels.

Who discovered it? Joseph Black

Number of Valence Electrons: 2

Calcium

atomic number:20

atomic mass:20 amu

symbol: Ca

uses: can be used to remove oxygen, sulfur, and carbon.

who discovered it: humphry davy

number of valence electrons: 2

Strontium

Atomic Number:38

Atomic Mass: 88 amu

Symbol:Sr

Uses: Strontium has found use in producing ferrite magnets and in refining zinc.

Who discovered it? Adair Crawford

Number of Valence Electrons: 2


Barium

Atomic number- 56

Atomic symbol- Ba

Atomic mass- 137

Discovered it- Humphry Davy

Uses- The sulfate, as permanent white is also used in paint, in X-ray diagnostic work, and in glass making.

Number of Valence electrons-2

Radium

Atomic Number:88

Atomic Mass:226 amu

Symbol:Ra

Uses:Radium had been used to make self-luminous paints for watches, aircraft instrument dials and other instrumentation, but has largely been replaced by cobalt-60, a less dangerous radioactive source. A mixture of radium and beryllium will emit neutrons and is used as a neutron source

Who discovered it?Pierre Curie

Number of Valence Electrons:2
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What do they all have in common?

They are naturally occurring and very reactive.