An electronic transition from $1s$ orbital of an atom causes

  • A
    Absorption of energy
  • B
    Release of energy
  • C
    Both release or absorption of energy
  • D
    Unpredictable

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Similar Questions

What is the number of radial and angular nodes in a $5f$ orbital?

$(i)$ Write the electronic configurations of the following ions:
$(a)$ $H^{-}$
$(b)$ $Na^{+}$
$(c)$ $O^{2-}$
$(d)$ $F^{-}$
$(ii)$ What are the atomic numbers of elements whose outermost electrons are represented by
$(a)$ $3s^{1}$
$(b)$ $2p^{3}$ and
$(c)$ $3p^{5}$?
$(iii)$ Which atoms are indicated by the following configurations?
$(a)$ $[He] 2s^{1}$
$(b)$ $[Ne] 3s^{2} 3p^{3}$
$(c)$ $[Ar] 4s^{2} 3d^{1}$

Which one of the following sets of quantum numbers is incorrect?
Principal quantum number $(n)$ Azimuthal quantum number $(l)$ Magnetic quantum number $(m)$

The quantum number '$n$' for a free gaseous atom is associated with which of the following?

How many nodal (angular) planes are present in the $d_{xy}$ orbital? Which are they?

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