57. An element X belong to fourth period and fifteenth group of the periodic table . Which one of the following is true regarding the outer electronic configuration of X ? It has (a) partially filled d orbitals and completely filled s-orbitals. (b) completely filled s orbital and completely filled p-orbitals. (c) completely filled s orbital and half filled p-orbitals
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Answer:
c is the correct option.
Explanation:
Since, group 15 elements have ns²np³ type electronic configuration.
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