Which one of the following depicts the correct representation of atomic radius $(r)$ of an atom?

  • A
    $(i)$ and $(ii)$
  • B
    $(iii)$ and $(iv)$
  • C
    $(ii)$ and $(iii)$
  • D
    $(i)$ and $(iv)$

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Similar Questions

Mendeleev predicted the existence of certain elements not known at that time and named two of them as Eka-silicon and Eka-aluminium.
$(a)$ Classify these elements as metals,non-metals,or metalloids.
$(b)$ How many valence electrons are present in each one of them?

Define Newlands' law of Octaves.

Write the trend of atomic size and metallic character along a group and a period in the modern periodic table.

In Mendeleev's Periodic Table,gaps were left for elements to be discovered later. Which of the following elements found a place in the periodic table later?

Write true or false for the statement: It was assumed by Newlands that only $63$ elements existed in nature and no more elements would be discovered in the future.

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