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Alkali Metals
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Published on Nov 18, 2019
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PRESENTATION OUTLINE
1.
Alkali Metals
The Periodic Table
2.
Elements
Lithium,
Sodium
Potassium
Rubidium
Cesium
3.
3 INteresting Facts
Alkali metals only have 1 electrons in their outermost energy level.
Alkali metals are the first metals in the periodic table.
Alkali metals are the most reactive of all the metals.
4.
Alkali Metals IN the real world
Table salts that we use everyday are made from sodium (which are alkali metals)
Cesium is used to make clocks and is considered one of the more accurate clocks
Lithium is used in batteries
Photo by
Tim simpson1
5.
Sodium
ALkali Metal Element
6.
Physical Characteristics
Sodium is a silver/white metal that is softer compared to other metals.
Photo by
NASA's Marshall Space Flight Center
7.
Sodium properties
Atomic Number: 11
Atomic Mass: 22.990
Sodium is a metal
Density: 2.16 and will float in water
Photo by
Krystian Tambur
8.
Sodium in the real world
Heat exchanger
Common table salts
Used in salts that de-ice roads during the winter
Photo by
jurek d. (Jerzy Durczak)
9.
3 Interesting Facts
Sodium helps digest our foods
We lose sodium when we sweat
Is 2.6% of the Earths crust
10.
Historical Facts
Founded in 1807
Isolated by Humphry Davy
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