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IGCSE Physics7.2 Atomic structure and nucleiTopic Practice

7.2 Atomic structure and nuclei

Describe the structure of an atom in terms of protons, neutrons and electrons and use symbols such as 6 C to describe particular nuclei

Question 2(b)(ii)

[Maximum number: 1]

Uranium-239 is an isotope of the element uranium.

Uranium-239 can be represented using the symbol

Question image

Protons are one type of particle found in the nucleus of an atom.

Give the name of the other particle found in the nucleus of an atom of uranium-239.

Question 2(d)

[Maximum number: 1]

An atom contains 8 protons, 8 neutrons and 8 electrons.

Which of these would result in a negatively charged ion of the same element?

A

adding an electron

B

adding a proton

C

removing an electron

D

removing a proton

Question 7(a)(i)

[Maximum number: 1]

This question is about using carbon dating to find the age of pieces of wood.

The equation shows how carbon-14 forms in the atmosphere.

01n+714 N→614C+11X{ }_{0}^{1} \mathrm{n}+{ }_{7}^{14} \mathrm{~N} \rightarrow{ }_{6}^{14} \mathrm{C}+{ }_{1}^{1} \mathrm{X}

State the name of particle X .

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