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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
Consider the following elements: Be, Li, Na, Ca, K. Name the elements of (a) same group (b) same period.
What is meant in the periodic table by a group?
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.
How do alkaline earth metals occur in nature?
Write the electronic configuration of the first two alkaline earth metals.
Comment on the (i) reactivity (ii) colour (iii) physical state of group 17 elements.
Name the gas used in:
Light bulbs
Write a short note on the following type of element –
halogens
Name or state following with reference to the element of the first three periods of the periodic table.
An alkaline earth metal in period 3.
State the following:
The group whose elements are unreactive or inert.
