Group+1Hr2

= *Barbara & Alissa* [:  =

= A l k a l i M e t a l s ! = ====The alkali metals are group number one on the periodic table. This group of elements is highly reactive. Because of this, they are never found in their elemental form in nature. These elements' physical and chemical properties are different, but also have many similarities. ====
 * ====Physical Properties- Most of the alkali metals are known to be soft with a low-density, shiny, and silver in color. Some of the elements, though, have their differences. Some of the elements have different shades of colors with the silver shade they all have. ====
 * ====Chemical Properties-These elements are known to be highly reactive with water, oxygen, and halogens. This is a main reason why these metals are never found in nature. Lithium, however, is different from the rest of the metals in this group. It resembles elements in group two, more than those in its own group. It reacts more to carbon, hydrogen, and nitrogen, then to water, oxygen, and halogens. ====
 * ====Periodic Trends- As you move down the column of this group on the table, the elements become more and more reactive, and dangerous. ====

[[image:Lithium.jpg align="left"]] Atomic Number-3
Atomic Mass-7 Protons-3 Neutrons-4 Electrons-3 Isotopes-2 Electron Configuration- 1s(2) 2s(2) Quantum Numbers- n:1, l:0, m1:0, ms:1/2

Discovered by: Johann A. Arfedson in 1817 Where it's found: Spodumene Uses: Removes unwanted gases in manufacturing, mood stabilizer for those with bipolar disorder. Fun Facts: It has been used in making the hydrogen bomb.

Sodium-Na
Atomic Number-11 Atomic Mass-23 Protons-11 Neutrons-13 Electrons-11 Isotopes-1 Electron Configuration-1s(2) 2s(2) 2p(6) 3s(1) Quantum Numbers- n:1, l:0, m1:0, ms: 1/2

Discovered by: Sir Humphry Davy in 1806 Where it's found: only in the form of sodium chloride, found in ocean water. Uses: It is used in many widely used products like table salt, baking soda, borax, etc. Fun Facts: It is the sixth most abundant element on earth. = Potassium-K = = =  Atomic Number-19 Atomic Mass- 40 Protons-19 Neutrons-21 Electrons-19 Isotopes-2 Electron Configuration-1s(2) 2s(2) 2p(6) 3s(2) 3p(6) 4s(1) Quantum Numbers- n:1, l:0, m1:0, ms:1/2 = =

Discovered by: Sir Humphry Davy in 1807. Where it's found: It is found in many fruits and vegetables. Uses: It is used to maintain human, animal, and plant life alike. Fun Facts: This element is the seventh most abundant on earth and makes up 1.5% of the earths crust in weight.

Rubidium-Rb
Atomic Number-37 Atomic Mass-85 Protons-37 Neutrons-48 Electrons-37 Isotopes-1 Electron Configuration- 1s(2) 2s(2) 2p(6) 3s(2) 3p(6) 4s(2) 3d(10) 4p(6) 5s(1) Quantum Numbers-n:1, l:0, m1:0, ms:1/2

Discovered by: R. Bunsen in 1861 Where it's found: Lithium production Uses: Photocells, catalyst

Cesium-Cs
Atomic Number-55 Atomic Mass-133 Protons-55 Neutrons-78 Electrons-55 Isotopes-1 Electron Configuration-1s(2)2s(2)2p(6)3s(2)3p(6)4s(2)3d(10)4p(6)5s(2)4d(10)5p(6)6s(1) Quantum Numbers-n:1, l:0, m1:0, ml:1/2

Discovered by: Fustav Kirchoff in 1860 Where it's found: Pollucite, lepidolite Uses: Removes air traces in vacuum tubes Fun Facts: It's name comes from the latin word caesius, which means sky blue. It was given its name because its spectrum has two bright blue lines in it.

​** Francium-Fr ** Atomic Number-87 Atomic Mass-223 Protons-87 Neutrons-136 Electrons-87 Isotopes-32 Electron Configuration-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(1) Quantum Numbers-n:1, l:0, m1:0, ms:1/2

Discovered by: Marguerite Derey in 1939 Where it's found: Decay of actinium Uses: No specific uses...

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