NSEC · Chemistry · Structure of Atom
Aufbau, Pauli exclusion, Hund's rule and exceptional configurations.
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Q1 · Electronic Configurations · EASY
The electronic configuration of chromium (Z = 24) is:
Q2 · Electronic Configurations · MEDIUM
Which of the following ions has the highest number of unpaired electrons?
Q3 · Electronic Configurations · HARD
The element with atomic number 120 would belong to which block of the periodic table?
Q4 · Electronic Configurations · MEDIUM
Which of the following pairs are isoelectronic?
Q5 · Electronic Configurations · HARD
The set of quantum numbers (n, l, m, s) that is NOT possible for an electron in an atom is: