MCQ
Which of the following is a transitional element
- A$Al$
- B$As$
- ✓$Ni$
- D$Rb$
✓
Answer
Correct option: C.
$Ni$
c
Hint: A transition metal contains partially filled d- subshell and has the configuration $( n -1) d ^{1-10} ns ^2$
Hint: A transition metal contains partially filled d- subshell and has the configuration $( n -1) d ^{1-10} ns ^2$
Explanation:
The electronic configuration of nickel is $[ Ar ] 3 d ^8 4 s ^2$ which is in sync with the general electronic configuration of a transition element $(n-1) d^{1-10} ns ^2$.
Aluminum, arsenic, and lead don't possess the required configuration so they are not the transition elements.
The electronic configuration of Nickel is $[ Ar ] 3 d ^8 4 s ^2$. So it is a transition element.
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