The Structure of the Atom (OCR GCSE Chemistry A (Gateway Science Suite)): Quizzes

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The Structure of the Atom
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12 questions from this quiz

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What two main parts make up an atom?

Nucleus and orbits (shells)

Where are electrons located in an atom?

In orbits (shells)

Which particles are found in the nucleus?

Protons and neutrons

What is the charge on a proton?

+1+1

What is the charge on a neutron?

00

What is the overall charge of the nucleus?

Positive

What is the charge on an electron?

−1-1

What is the relative mass of an electron?

0.00050.0005

Why do atoms have no overall charge?

Number of electrons equals protons

What is the relative mass of a proton?

11

What does an atom become if it gains an electron?

A negative ion

What does an atom become if it loses an electron?

A positive ion

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