Q.

The correct statement/s among the following 

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Start JEE / NEET / Foundation preparation at rupees 99/day !!

21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!
An Intiative by Sri Chaitanya

a

Period number corresponds to the highest principal quantum number of the elements in the period

b

All the above

c

Long form of the periodic table is a graphical representation of the Aufbau principle

d

Number of elements in each period is twice the number of atomic orbitals available in the energy level that is being filled

answer is D.

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