Beryllium (Be) is the only alkaline earth metal that does not react with water.
What are alkali metals and their properties?
Alkali is a substance that produces hydroxide ions in aqueous solution.
PHYSICAL PROPERTIES OF ALKALIS:
- Alkalis have a BITTER taste & have a SOAPY touch.
- Alkalis turn RED litmus paper BLUE.
- Alkalis have a pH value > 7.
- Alkalis are CAUSTIC.
- Alkalis CONDUCT ELECTRICITY due to the presence of MOBILE IONS in solution.
CHEMICAL PROPERTIES OF ALKALI METAL
- Alkalis react with Acids to form salt and water. This reaction is called neutralisation reaction.
- Alkalis react with ammonium salts to form salt, water and ammonia gas. .
- Alkalis react with solution of metal salt to form another metal salt and hydroxide.
Beryllium (Be) is the only alkaline earth metal that does not react with water.
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