Size & Mass of Atoms (AQA GCSE Chemistry): Quizzes

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Size & Mass of Atoms
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What is the approximate radius of an atom?

1×10101 \times 10^{-10} m

What is the approximate radius of a nucleus?

1×10141 \times 10^{-14} m

How does the nucleus radius compare to the atom's radius?

Less than 1/10,000

What is the approximate radius of a typical bacterium?

1×1061 \times 10^{-6} m

What is the relative mass of a proton?

1

What is the relative charge of a neutron?

0

How is the relative mass of an electron described?

Very small

Where is nearly all of an atom's mass concentrated?

In the nucleus

How do the charges of protons and electrons compare?

Equal and opposite

What is the approximate radius of a human hair?

1×1041 \times 10^{-4} m

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