Question
Download Solution PDFWhat are the special features of the following group of elements?
1. All these elements are metals
2. All these elements react with water to form hydrogen gas
3. All these elements have a valency 1
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is Alkali metal group.
Key Points
- Alkali Metals:
- Group 1 of the periodic table consists of namely, lithium (Li), sodium (Na), potassium (K), rubidium (Rb), caesium (Cs), and francium (Fr).
- Properties of Alkali metals:
- They have high thermal and electrical conductivity, lustre, ductility, and malleability.
- All these elements react with water to form hydrogen gas.
- Each of these, alkali metal atoms has a single electron in its outermost shell. Hence, their valency is 1.
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