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2.1 Atomic structure

2.1 Atomic structure

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Question 63

A silicon atom has an atomic radius of 111 pm111\text{ pm}111 pm.

What is the diameter of this silicon atom in metres, expressed in standard form?

A

1.11×10−10 m1.11 \times 10^{-10}\text{ m}1.11×10−10 m

B

2.22×10−10 m2.22 \times 10^{-10}\text{ m}2.22×10−10 m

C

2.22×10−12 m2.22 \times 10^{-12}\text{ m}2.22×10−12 m

D

2.22×10−14 m2.22 \times 10^{-14}\text{ m}2.22×10−14 m

Markscheme

2.1 Atomic structure Questions

  1. GCSE
  2. /Chemistry
  3. /2.1 Atomic structure

120 exam-style questions on Edexcel GCSE Chemistry 2.1 Atomic structure, covering 2.1.1 Development of the atomic model, 2.1.2 Structure of the atom and subatomic particles, 2.1.3 Mass number, isotopes and relative atomic mass, and 2.1.4 Calculating relative atomic mass from isotopic abundance. Each one has a worked solution and a mark scheme showing where the marks go.

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