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Which of the following elements is a d-block element?

Which of the following elements is a d-block element?
Take Free Practice Test On 2026 JAMB UTME, Post UTME, WAEC SSCE, GCE, NECO SSCE
  • A Calcium
  • B Lron
  • C Lithium
  • D Silicon
Correct Answer: Option B
Explanation:

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