Chemistry · Modern periodic law and present form of the periodic table
If the atomic number of an element is it will be placed in the periodic table in
If the atomic number of an element is \( 58, \) it will be placed in the periodic table in the:
- A. III B gp and \( 6^{\text {th }} \) period
- B. IV B gp and \( 6^{\text {th}} \) period
- C. \( \mathrm{VB} \) gp and \( 7^{\operatorname{th}} \) period
- D. None of the above
Step-by-step solution
Element with atomic number 58 is Cerium, a lanthanide. Lanthanides are placed in period 6 and belong to group 3 (III B) in the periodic table.
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