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प्रश्न
Name two elements of each group.
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उत्तर
- Group 1: Lithium (Li), Sodium (Na)
- Group 17: Chlorine (Cl), Iodine (I)
- Group 18: Helium (He), Neon (Ne)
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संबंधित प्रश्न
What are the following group known as?
Group 17
What are the following group known as?
Group 18
How do atomic structures (electron arrangements) change in a period with an increase in atomic numbers moving left to right?
Name and state the following with reference to the elements of the first three periods of the periodic table.
Noble gas having electronic configuration: 2, 8, 8.
Name and state the following with reference to the elements of the first three periods of the periodic table.
Group whose elements have zero valencies.
Comment on the (i) reactivity (ii) colour (iii) physical state of group 17 elements.
Name the gas used in:
Filling balloons
Name the gas used in:
Bright colour advertising light works
Write a short note on the following type of element –
noble gases
Give a reason for the following:
Noble gases do not form compounds readily.
