AS & A Level Chemistry 1.1 Particles in the atom and atomic radius : Exam Style Questions Paper 1

Question

 Which diagram shows the variation of the metallic radius r of the Group I elements, Li, Na, K and Rb, with increasing proton (atomic) number?

Answer/Explanation

Ans:

A

Question

 John Dalton’s atomic theory, published in 1808, contained four predictions about atoms.

    Which of his predictions is still considered to be correct?

  1. All atoms are very small in size.
  2. All the atoms of a particular element have the same mass.
  3. All the atoms of one element are different in mass from all the atoms of other elements.
  4. No atom can be split into simpler parts.
Answer/Explanation

Ans:

A

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