A metal reacts vigorously with cold water melting in to a ball of molten metal moves across the surface of water giving of Hydrogen gas and burns wni yellowish golden flame. What could be the identity of this metal?
Correct answer: B. Sodium
- A. Potassium
- B. Sodium
- C. Lithium
- D. Calcium
Explanation
Sodium is known to react vigorously with water, producing hydrogen gas and a characteristic yellowish-golden flame.
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About s-Block and p-Block Elements
The s and p blocks are studied through their valence-shell configurations, periodic trends and characteristic chemical properties. Work covers the reactions of Group I and Group II elements, the behaviour of Group IV elements, and how atomic size, ionization energy, electronegativity and metallic character change across periods and down groups.
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