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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
How do atomic structures (electron arrangements) change in a period with an increase in atomic numbers moving left to right?
What happens to the number of valence electrons in atoms of elements as we go down a group of the periodic table?
Comment on the (i) reactivity (ii) colour (iii) physical state of group 17 elements.
Name the gas used in:
Bright colour advertising light works
Give reason:
Inert gases do not form compounds.
State the characteristics which remain similar in moving down in a group of the periodic table.
Write a short note on the following type of element –
alkali metals
State the main helpful features of the long form of the periodic table.
State the following:
The group whose elements are unreactive or inert.
