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प्रश्न
The electronic configuration of an element T is 2, 8, 8, 1.
What is the period number of T?
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उत्तर
With 4 shells T belong to period 4.
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संबंधित प्रश्न
State modern periodic law.
Fill in the following blank with suitable word:
The horizontal rows in a periodic table are called ...............
How do the atomic radii of elements change as we go from left to right in a period of the periodic table?
Explain why All the elements of a period have different chemical properties.
Which of the following are the correct characteristics of isotopes of an element?
(i) same atomic mass
(ii) same atomic number
(iii) same physical properties
(iv) same chemical properties
(a) (i), (ii) and (iv)
(b) (ii), (iii) and (iv)
(c) (ii) and (iii)
(d) (ii) and (iv)
How does the electronic configuration of an atom relate to its position in the modern periodic table?
Give the symbol and valency of the following element and radical.
Potassium
Give the symbol and valency of the following element and radical.
Chlorine [Chloride]
Where would you locate the element with electronic configuration 2,8 in the Modern Periodic Table?
Choose an element from period 3 of modern periodic table that matches the description given below in instance. Give a reason for your choice.
It has same valency as Lithium.
