Question

what is Potassium??​

Answer 1

Answer:

Potassium is a chemical element with the symbol K and atomic number 19. Potassium is a silvery-white metal that is soft enough to be cut with a knife with little force. Potassium metal reacts rapidly with atmospheric oxygen to form flaky white potassium peroxide in only seconds of exposure.

• Symbol: K

Symbol: KAtomic mass: 39.0983 u

Symbol: KAtomic mass: 39.0983 uAtomic number: 19

Symbol: KAtomic mass: 39.0983 uAtomic number: 19Electron configuration: [Ar] 4s¹

Symbol: KAtomic mass: 39.0983 uAtomic number: 19Electron configuration: [Ar] 4s¹Van der Waals radius: 280 pm

Symbol: KAtomic mass: 39.0983 uAtomic number: 19Electron configuration: [Ar] 4s¹Van der Waals radius: 280 pmMelting point: 63.5 °C

Explanation:

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Answer 2

Answer:

Potassium :

• Potassium is a chemical element with the symbol K and atomic number 19.
• Potassium is a silvery-white metal that is soft enough to be cut with a knife with little force.
• Potassium metal reacts rapidly with atmospheric oxygen to form flaky white potassium peroxide in only seconds of exposure.

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