Chemistry · Metals and Non-metals
A piece of element X can be easily cut with a knife. During its vigorous reaction with water, X floats on the surface and melts into a silvery globe. Identify the element X.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Calcium
- 2Potassium✓
- 3Magnesium
- 4Copper
Correct answer
Potassium
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