Group+2Hr2

= = __The ____ Alkaline ____ Earth ____ Metals __

· Consists of:  **Beryllium (Be), **Magnesium (Mg), Calcium (Ca), Stronium (Sr), Barium (Ba), Radium (Ra).  · Second Most Reactive Group on periodic table  · <span style="color: black; font-family: 'Lucida Sans','sans-serif'; font-size: 12pt; line-height: 200%;">Some Elements prove helpful while others pose a hazard to human life <span style="color: #244061; font-family: 'Lucida Sans','sans-serif'; font-size: 12pt; line-height: 200%;"> · <span style="color: black; font-family: 'Lucida Sans','sans-serif'; font-size: 12pt; line-height: 200%;">Tend to be sliver in color, soft, and have low-density <span style="color: #244061; font-family: 'Lucida Sans','sans-serif'; font-size: 12pt; line-height: 200%;"> · <span style="color: black; font-family: 'Lucida Sans','sans-serif'; font-size: 12pt; line-height: 200%;">Have two Valence electrons that tend to become lose to form ions with a two plus charge <span style="color: #244061; font-family: 'Lucida Sans','sans-serif'; font-size: 12pt; line-height: 200%;"> · <span style="color: black; font-family: 'Lucida Sans','sans-serif'; font-size: 12pt; line-height: 200%;">React easily with halogens, and can react slowly with water <span style="color: #244061; font-family: 'Lucida Sans','sans-serif'; font-size: 12pt; line-height: 200%;">



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<span style="color: #630d63; font-family: 'Lucida Sans Unicode','Lucida Grande',sans-serif; font-size: 195%;">**Beryllium** <span style="color: #630d63; font-family: 'Lucida Sans Unicode','Lucida Grande',sans-serif; font-size: 130%;">

Symbol: Be Atomic #: 4 Atomic Mass: 9 Protons: 4 Neutrons: 5 Electrons: 4 Isotopes: 1 __Electron Configuration:__ 1^2 2s^2 __Quantum Numbers:__ n=2 l=0 m=0 spin=-1/2 Looks: lightweight, corrosion, resistant, rigid, steel gray metallic __FUN FACTS:__ Has the highest melting and boiling point in the group Name comes from the Greek word Beryllos meaning Beryl. __Uses:__ Aerospace structural material Copper alloy used for springs Non-sparkling tools

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<span style="-moz-background-clip: -moz-initial; -moz-background-inline-policy: -moz-initial; -moz-background-origin: -moz-initial; background: white 0% 50%; color: #630d63; display: block;"> <span style="-moz-background-clip: -moz-initial; -moz-background-inline-policy: -moz-initial; -moz-background-origin: -moz-initial; background: white 0% 50%; color: purple; display: block;"> <span style="color: #984806; font-family: 'Lucida Sans','sans-serif'; font-size: 12pt; line-height: 200%;">Symbol: Mg Atomic #: 12 Atomic Mass: 24 Protons: 12 <span style="-moz-background-clip: -moz-initial; -moz-background-inline-policy: -moz-initial; -moz-background-origin: -moz-initial; background: white 0% 50%; color: #984806; font-family: 'Lucida Sans','sans-serif'; font-size: 12pt; line-height: 200%;">Neutrons: 12 <span style="color: #984806; font-family: 'Lucida Sans','sans-serif'; font-size: 12pt; line-height: 200%;"> Electrons: 12 <span style="-moz-background-clip: -moz-initial; -moz-background-inline-policy: -moz-initial; -moz-background-origin: -moz-initial; background: white 0% 50%; color: #984806; display: block; font-family: 'Lucida Sans','sans-serif'; font-size: 12pt; line-height: 200%; text-align: center;">Istopes: __Electron Configuration:__ 1s^2 2s^s 2p^6 3s^2 __Quantum Numbers:__ n=3 l=0 m=0 spin=-1/2 Looks: light silver-white, moderately hard element. In ribbon or powder form burns with flame. Fun Fact: Name originates form a Greek district in Thessaly called Magnesia Uses: Flash Photography Pyrotechnics Incendiary bombs
 * <span style="-moz-background-clip: -moz-initial; -moz-background-inline-policy: -moz-initial; -moz-background-origin: -moz-initial; background: white 0% 50%; color: #984806; font-family: 'Lucida Sans','sans-serif'; font-size: 18pt; line-height: 200%;">Magnesium **<span style="color: #984806; font-family: 'Lucida Sans','sans-serif'; font-size: 18pt; line-height: 200%;">

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Atomic #: 20 Atomic Mass: 40 <span style="color: #003300; font-family: 'Lucida Sans','sans-serif'; font-size: 12pt; line-height: 200%;">of Protons: 20 of Neutrons: 20 of Electrons: 2 __<span style="color: #003300; font-family: 'Lucida Sans','sans-serif'; font-size: 12pt; line-height: 115%;">Electron Configuration: __ <span style="color: #003300; font-family: 'Lucida Sans','sans-serif'; font-size: 12pt; line-height: 115%;"> 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2
 * Calcium **<span style="color: #003300; display: block; font-family: 'Lucida Sans','sans-serif'; font-size: 12pt; line-height: 200%; text-align: center;">Symbol: Ca

__Quantum Numbers:__ n=4 l=0 m=0 spin=+1/2 Looks: Silver moderately hard metallic element

Fun Facts: Constitutes approximately 3.5% of the earth’s crust

Is a basic componet of most animals and plants

Originates from the Latin word “calcis” meaning lime.

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<span style="color: #244061; font-family: 'Lucida Sans','sans-serif'; font-size: 18pt; line-height: 115%;">**Strontium**

Symbol: Sr

Atomic #: 38

Atomic Mass: 88

Protons: 38

Neutrons: 50

Electrons: 38

__Electron Configuration:__ <span style="color: #244061; font-family: 'Lucida Sans','sans-serif'; font-size: 12pt; line-height: 115%;">1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^2

__Quantum Numbers:__ n=5 l=0 m=0 spin=+1/2

Looks: Soft, silver, easily oxidized metallic element

Fun Facts: Ignites spontaneously in the air when divided

Named after Scottish town of Strontian

Uses: Pyrotechnic compounds

Various Alloys



Symbol: Ba Atomic #: 56 Atomic mass: 137 Protons: 56 Neutrons: 81 Electrons: 56 __<span style="color: #ff6600; font-family: 'Lucida Sans','sans-serif'; font-size: 12pt; line-height: 200%;">Electron Configuration: __ <span style="color: #ff6600; font-family: 'Lucida Sans','sans-serif'; font-size: 12pt; line-height: 200%;">1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^2 4d^10 5p^6 6s^2 __<span style="color: #ff6600; font-family: 'Lucida Sans','sans-serif'; font-size: 12pt; line-height: 200%;">Quantum Numbers: __ <span style="color: #ff6600; font-family: 'Lucida Sans','sans-serif'; font-size: 12pt; line-height: 200%;">n=6 l=0 m=0 spin=-1/2
 * <span style="color: #ff6600; font-family: 'Lucida Sans','sans-serif'; font-size: 18pt; line-height: 200%;">Barium **<span style="color: #ff6600; font-family: 'Lucida Sans','sans-serif'; font-size: 12pt; line-height: 200%;">

<span style="color: #ff6600; font-family: 'Lucida Sans','sans-serif'; font-size: 12pt; line-height: 200%;">Looks: soft, silvery-white element Fun Fact: Originates from the Greek word “barys” meaning heavy. Uses: Deoxidizes copper Is in various Alloys



<span style="color: #630d63; font-family: 'Lucida Sans','sans-serif'; font-size: 12pt; line-height: 200%;"> **<span style="color: #ff0066; font-family: 'Lucida Sans','sans-serif'; font-size: 18pt; line-height: 200%;">Radium ** <span style="color: #ff0066; font-family: 'Lucida Sans','sans-serif'; font-size: 12pt; line-height: 200%;">Symbol: Ra Atomic #: 88 Atomic Mass: 226 Protons: 88 Neutrons: 138 Electrons: 88 __<span style="color: #ff0066; font-family: 'Lucida Sans','sans-serif'; font-size: 12pt; line-height: 200%;">Electron Configuration: __ <span style="color: #ff0066; font-family: 'Lucida Sans','sans-serif'; font-size: 12pt; line-height: 200%;">1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^2 4d^10 5p^6 6s^2 4f^14 5d^10 6p^6 7s^2 __<span style="color: #ff0066; font-family: 'Lucida Sans','sans-serif'; font-size: 12pt; line-height: 200%;">Quantum Numbers: __ <span style="color: #ff0066; font-family: 'Lucida Sans','sans-serif'; font-size: 12pt; line-height: 200%;">n=7 l=0 m=0 spin=-1/2

Looks: Rare, brilliant white, luminescent, highly radioactive, metallic element Fun Fact: Name originates from the Latin word “radius” meaning ray Uses: Cancer radiotherapy Neutron source for some research purposes Constituent of luminescent paints

<span style="color: #630d63; font-family: 'Lucida Sans','sans-serif'; font-size: 12pt; line-height: 200%;"> <span style="color: #ff6600; font-family: 'Lucida Sans','sans-serif'; font-size: 12pt; line-height: 200%;">Sources: <span style="color: black; font-family: 'Lucida Sans','sans-serif'; font-size: 12pt; line-height: 200%;"> [|www.chem4kids.com/files/elem_] [|**alkalineearth**] [|.html] <span style="color: green; font-family: 'Lucida Sans','sans-serif'; font-size: 12pt; line-height: 200%;">[|www.**newworldencyclopedia.org**/entry/**Alkaline**_**earth**_metal] __<span style="color: #5093ff; font-family: 'Lucida Sans','sans-serif'; font-size: 12pt;">[|www.theodoregray.com/PeriodicTableElements/020/index.s15.html] __<span style="color: #cccccc; font-family: 'Lucida Sans','sans-serif'; font-size: 12pt;"> <span style="color: #088000; font-family: 'Lucida Sans','sans-serif'; font-size: 12pt; line-height: 200%;">[|www.periodic-table.org.uk/element.htm] [|www.Buzzle.com] google.images