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प्रश्न
The groups 1 and 2 constitute the _______ block.
विकल्प
s
p
d
q
उत्तर
The groups 1 and 2 constitute the s block.
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संबंधित प्रश्न
In the Modern Periodic Table, which are the metals among the first ten elements?
Nitrogen (atomic number 7) and phosphorus (atomic number 15) belong to group 15 of the Periodic Table. Write the electronic configuration of these two elements. Which of these will be more electronegative? Why?
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Fill in the following blank with suitable word:
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Fill in the following blank with suitable word:
Group 18 elements are called ...............
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State whether the following statement is true or false:
On going down in a group of the periodic table, the number of valence electrons increases.
What is the number of elements is 1st period the modern periodic table?
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What are the periods in a periodic table? Give two characteristics of each.
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(i) A and D
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(iv) B and C
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Write an Explanation.
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Answer the following in respect of element \[\ce{_16^32S}\].
Give its formula with hydrogen.
Match the atomic number with the following:
A rare gas.
