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प्रश्न
State the number of elements in Period 2 of the Periodic Table.
How many elements are there in Period 2.
उत्तर
Period 2 is a short period that has 8 elements.
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संबंधित प्रश्न
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?
What is the name of those elements which divide metals and non-metals in the periodic table?
Name two elements in each case:
Transition element
An element barium has the atomic number 56. Look up its position in the periodic table and answer the following question.
Is it larger or smaller than caesium (Cs)?
How will the tendency to gain electrons change as we go from left to right across a period? Why?
Give the symbol and valency of the following element and radical.
Bisulphate
Distinguish between:
Group 17 - Group 18
Which of the given elements A, B, C, D and E with atomic number 2, 3, 7, 10 and 30 respectively belong to the same period?
Three elements A, B and C have 3, 4 and 2 electrons respectively in their outermost shell. Give the group number to which they belong in the Modern Periodic Table. Also, give their valencies.
The maximum number of electrons that can be accommodated in s, p,d, and f subshells are ______.
