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प्रश्न
The electronic configuration of an element T is 2, 8, 8, 1.
What is the period number of T?
उत्तर
With 4 shells T belong to period 4.
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 meant by a group, in a periodic table?
The atomic numbers of four elements P, Q, R and S are 6, 8, 14 and 16 respectively. Out of these, the element known as metalloid is:
(a) P
(b) Q
(c) R
(d) S
How would the tendency to gain electrons change on moving from left to right in a period of the periodic table?
What are the periods in a periodic table? Give two characteristics of each.
Correct the statement.
Copper and zinc are representative elements.
Give the symbol and valency of the following element and radical.
Nitrogen [Nitride]
Give the symbol and valency of the following element and radical.
Bisulphite
Complete the following flow chart.
The element with atomic number 14 is hard and forms acidic oxide and a covalent halide. To which of the following categories does the element belong?
