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By: Amna Al-Hammadi Science 8B

Does a connection or a relationship exist between the reactivity of a metal and when it was discovered?. By: Amna Al-Hammadi Science 8B. The Reactivity Series. Discovery Date of Metals. Metals. Discovery date. Rubidium Potassium Sodium Barium Calcium Magnesium Aluminum Manganese

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By: Amna Al-Hammadi Science 8B

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  1. Does a connection or a relationship exist between the reactivity of a metal and when it was discovered? By: Amna Al-Hammadi Science 8B

  2. The Reactivity Series

  3. Discovery Date of Metals Metals Discovery date • Rubidium • Potassium • Sodium • Barium • Calcium • Magnesium • Aluminum • Manganese • Zinc • Cobalt • Iron • Tin • Copper • Silver • Gold • 1860 • 1807 • 1807 • 1808 • 1808 • 1808 • 1825 • 1774 • 1746 • 1737 • 2000 BC • 3000 BC • 3500 BC • 5000 BC • 5000 BC 1

  4. Potassium • Symbol: K • Atomic Mass: 39.0983 • Atomic Number: 19 Potassium is a reactive metal it was discovered in 1807 (See in Chart) Potassium reacts rapidly with oxides to form oxides of itself also oxide in water forms hydroxide and hydrogen.

  5. Calcium • Symbol: Ca • Atomic Mass: 40.078 • Atomic Number: 20 • Calcium is a metal that reacts with air to form Calcium Oxide and it was discovered in 1808. (See in Chart)

  6. Gold • Gold: Au • Atomic Mass: 196.97 • Atomic Number: 79 • Gold is a metal that is very unreactive even if it is left in water or oxygen for a long time. It was discovered in 5000 BC (See in Chart).

  7. Conclusion • So Yes there is a connection and a relationship of the reactivity and discovery date because as you saw the discovery date showed that most of the metals are discovered the same but just a year different for Potassium and Calcium except for Gold. Also for the reactivity Potassium and Calcium are also close and again except for Gold.

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