Question
Download Solution PDFWhich of the following elements are included in the same group in the periodic table?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is H, Li, Na, K.
Key Points
- Elements like H, Li, Na, and K are related to the alkali metal group.
- The alkali metals consist of the chemical elements lithium (Li), sodium (Na), potassium (K), rubidium (Rb), caesium (Cs), and francium (Fr).
- Together with hydrogen, they constitute group 1, which lies in the s-block of the periodic table.
- The Group 1 elements are called alkali metals.
- All the Group 1 elements are very reactive.
- They must be stored under oil to keep air and water away from them.
- Group 1 elements form alkaline solutions when they react with water, which is why they are called alkali metals.
Additional Information
- Modern Periodic table showing Groups and Periods:
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