The set of orbitals filled just after the filling of electrons in an atom with atomic number $Z = 56$ is:

  • A
    $6p, 7s, 5f$
  • B
    $5d, 6p, 7s$
  • C
    $6s, 4f, 5d$
  • D
    $4f, 5d, 6p$

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Similar Questions

Two electrons $A$ and $B$ in an atom have the following set of quantum numbers:
$A: n=3, l=2, m_l=-2, m_s=+1/2$
$B: n=3, l=0, m_l=0, m_s=+1/2$
What is true for $A$ and $B$?

Which of the following orbitals are possible: $1p, 2s, 2p, 3f$?

According to the Aufbau principle,which of the three $4d$,$5p$,and $5s$ will be filled with electrons first?

The orbital with maximum energy is

The number of orbitals in the fourth principal quantum number $(n = 4)$ is:

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