The diagram shows the structure of an atom.
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| Subatomic particle | Relative mass | Relative charge |
| electron | 0.0005 | |
| proton | +1 | |
| neutron | 1 |
| Species | Number of protons | Number of neutrons | Number of electrons |
| U | 8 | 10 | 8 |
| V | 9 | 10 | 10 |
| W | 11 | 12 | 10 |
| X | 11 | 12 | 11 |
| Y | 12 | 12 | 12 |
| Z | 12 | 13 | 12 |
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The diagram shows the particles in the atom of an element.
What is particle Z?
| ☐ | A | an electron | |
| ☐ | B | a molecules | |
| ☐ | C | a neutron | |
| ☐ | D | a nucleus |
(1)
| ☐ | A | an electron | |
| ☐ | B | a neutron | |
| ☐ | C | a nucleus | |
| ☐ | D | a proton |
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| ☐ | A | 4 | |
| ☐ | B | 5 | |
| ☐ | C | 9 | |
| ☐ | D | 13 |
(1)
| ☐ | A | 4 | |
| ☐ | B | 5 | |
| ☐ | C | 9 | |
| ☐ | D | 13 |
(1)
(1)
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The diagram shows the particles in an atom of an element.
Use words from the box to label the diagram.
(3)
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The diagram shows an atom of an element.
a)
(1)
| ☐ | A | electron | |
| ☐ | B | ion | |
| ☐ | C | neutron | |
| ☐ | D | proton |
(1)
(1)
(2)
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The diagram below shows two different atoms of hydrogen.
Which particle is furthest from the centre of each atom?
(1)
| ☐ | A | proton | |
| ☐ | B | electron | |
| ☐ | C | neutron | |
| ☐ | D | nucleus |
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The diagram shows the electronic configuration of an atom of an element.
| name of the part of this atom labelled Z | |
| number of protons in this atom | |
| number of the group that contains this element | |
| number of the period that contains this element | |
| the charge on the ion formed from this atom |
[5]
3 marks| Mass number | Percentage abundance (%) |
| 24 | 79.2 |
| 25 | 10.0 |
| 26 | 10.8 |
[3]
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The diagram below shows two different atoms of hydrogen.
Which particle is missing from one of the diagrams?
(1)
| ☐ | A | electron | |
| ☐ | B | proton | |
| ☐ | C | neutron | |
| ☐ | D | nucleus |
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| Proton | Electron | Neutron | |
| Relative mass | 1/2000 | ||
| Relative charge | –1 |
8 marks
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1 markThe atomic structure of an unknown element is shown below.
What is the atomic number and mass number for the unknown element?
(1)
| ☐ | A | Atomic number = 6 Mass number = 11 | |
| ☐ | B | Atomic number = 5 Mass number = 11 | |
| ☐ | C | Atomic number = 5 Mass number = 6 | |
| ☐ | D | Atomic number = 6 Mass number = 10 |
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3 marks| ☐ | A | 14 | |
| ☐ | B | 15 | |
| ☐ | C | 28 | |
| ☐ | D | 29 |
3 marks| Mass number of isotope | Percentage of isotope in sample |
| 32 | 95.0 |
| 33 | 0.75 |
| 34 | 4.25 |
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1 markThe table shows information about the two isotopes of boron.
| Isotope | Number of protons | Number of neutrons | Percentage isotope in sample |
| 1 | 5 | 5 | 19 |
| 2 | 5 | 6 | 81 |
The relative atomic mass of this sample of boron is:
(1)
| ☐ | A | 10.1 | |
| ☐ | B | 10.8 | |
| ☐ | C | 11.5 | |
| ☐ | D | 11.8 |
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The diagram represents an atom of boron.
| atomic number | 5 |
| mass number | |
| number of neutrons | |
| group in the Periodic Table that contains boron | |
| period in the Periodic Table that contains boron | |
| electronic configuration of an atom of boron |
(5)
2 marks(2)
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Which box contains only atoms?
(1)
| ☐ | A | ||
| ☐ | B | ||
| ☐ | C | ||
| ☐ | D |
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Thallium, Tl, is an element in Group 3 and Period 6 of the Periodic Table.
The atomic number of thallium is 81
| ☐ | A | 3 | |
| ☐ | B | 6 | |
| ☐ | C | 13 | |
| ☐ | D | 81 |
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| ☐ | A | 3 | |
| ☐ | B | 81 | |
| ☐ | C | 78 | |
| ☐ | D | 84 |
(1)
5 marks| Isotope | Mass number | Percentage abundance (%) |
| thallium-203 | 203 | 30.80 |
| thallium-205 | 205 | 69.20 |
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