How does the electronic configuration in atoms change
(i) in a period from left to right?
(ii) in a group from top to bottom ?व्हाट आर मैटेलॉयड्स
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Answer. Atomic Size in a Period Decreases from Left to Right. As we move from left to right across a period, thenumber of electrons in the outer energy level increases but it is the same outer energy level. the electron configuration for the elements in Period 2.
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