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Alkaline Earth Metals

Alkaline Earth Metals . Presentation by Jasmine G, Andrew N, Samiya Z. Types Of Alkaline Earth Metals. Beryllium(Be) Magnesium(Mg) Calcium(Ca) Strontium(Sr) Barium(Ba) Radium(Ra) . Similarities . All alkaline metals are hard, dense, and have higher melting points opposed to group 1.

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Alkaline Earth Metals

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  1. Alkaline Earth Metals Presentation by Jasmine G, Andrew N, Samiya Z

  2. Types Of Alkaline Earth Metals • Beryllium(Be) • Magnesium(Mg) • Calcium(Ca) • Strontium(Sr) • Barium(Ba) • Radium(Ra)

  3. Similarities • All alkaline metals are hard, dense, and have higher melting points opposed to group 1. • They all have reactive properties • When these elements are mixed in solutions, they create a pH level higher than 7.

  4. More similarities • Most alkaline earth metals are located in the earth’s crust. • They are more metallic in character compared to group 1. • Usually silver in color. • They contain only 2 electrons. • They all make the element hydrogen when they’re mixed with water.

  5. Differences between alkaline earth metals • Be- First member of the alkaline earth metals group. Beryllium is usually silver white metal, and has a high melting point • Mg- Burns in the air with a blinding white light. It is mainly white metal, and it reacts to hot water & acids. • Ca- Calcium is usually silver grey metal, It is fairly reactive, and when it is combined with water at room temperature, it produces the element hydrogen.

  6. Some More Differences • Sr- is considered to be a malleable metal. It reacts vigorously with water to produce hydrogen gas. • Ba- works vigorously with matter to produce hydrogen gas, and it is highly toxic.

  7. (Be) and (Mg) Beryllium- Beryllium usually has a sweet taste, although it is highly toxic. Its known to be the sweetest alkaline earth metal compared to the rest. Beryllium consists of 4 protons and has a high transparency to x-rays and other types of ionizing radiation Magnesium- Magnesium alloys are known to be light but very strong. It combines with oxygen at room temperature to form a thin skin of magnesium oxide.

  8. (Sr) and ( Ca) Calcium- An element that is vital for human nutrition and the nutrition of animals as well. Calcium is used to make lime, brick, cement, glass, and many other things. Calcium compounds are the most abundant compared to the rest. Strontium - Strontium is much more softer opposed to calcium. It’s a silvery metal, but it rapidly oxidizes to a yellowish color. Due to its tendency of oxidation and ignition, strontium is usually stored in kerosene

  9. (Ra) and (Ba) Barium- barium is a soft metallic element. It usually decomposes in water or alcohol. Its usually stored under petroleum and other oxygen- free liquids. Radium – Radium usually blackens due to exposure to air. His element decomposes the fastest in water. Radium produces neutrons when its combined with beryllium

  10. End of Presentation

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