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Questions and Answers
What is the chemical symbol for nickel?
What is the chemical symbol for nickel?
- Ni (correct)
- Na
- Nk
- Ne
Where is pure native nickel found in Earth's crust?
Where is pure native nickel found in Earth's crust?
- Only in ultramafic rocks (correct)
- In volcanic rocks
- In abundance in all types of rocks
- In sedimentary rocks
What prevents further corrosion of pure nickel under standard conditions?
What prevents further corrosion of pure nickel under standard conditions?
- Exposure to direct sunlight
- Presence of water vapor
- Interaction with carbon dioxide
- Formation of a passivation layer of nickel oxide (correct)
What is the origin of nickel and iron as major end products?
What is the origin of nickel and iron as major end products?
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When was nickel first isolated and classified as an element?
When was nickel first isolated and classified as an element?
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Study Notes
Nickel Overview
- The chemical symbol for nickel is Ni.
- Pure native nickel is primarily found in iron meteorites and in certain geological formations in the Earth's crust, such as those in Sudbury, Canada, and Norilsk, Russia.
Properties and Behavior
- Pure nickel is known for its ability to resist corrosion under standard conditions due to the formation of a protective oxide layer that acts as a barrier against further oxidation.
Origin of Nickel and Iron
- Nickel and iron are major end products originating from the cosmic nucleosynthesis process, where they are formed during the supernova explosions of stars.
Historical Context
- Nickel was first isolated and classified as an element in 1751 by the Swedish chemist Axel Fredrik Cronstedt.
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