Atoms Quiz 7

Question 1

Points: 10 out of 10

Gold is abbreviated Au in the periodic table.

What is the atomic mass of gold?

• 79

• 197

• 118

• 276

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Correct. The atomic mass is written below the element abbreviation on the periodic table.

Question 2

Points: 10 out of 10

Fluorine, F, has an atomic number of 9 and an approximate atomic mass of 19. How many neutrons does a fluorine atom have?

• 19

• 9

• 10

• 28

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Correct. This is the number of neutrons. The number of neutrons = the atomic mass - the atomic number

Question 3

Points: 10 out of 10

Beryllium, Be, has an atomic number of 4 and an atomic mass of approximately 9. How many neutrons does a beryllium atom have?

• 5

• 9

• 13

• 4

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Correct. This is the number of neutrons. The number of neutrons = the atomic mass - the atomic number.

Question 4

Points: 10 out of 10

Neon has an atomic number of 10 and an atomic mass of approximately 20. How many electrons does neon have in its first shell?

• 10

• 8

• 2

• 20

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Correct! The first shell can only hold 2 electrons.

Question 5

Points: 10 out of 10

Zinc is abbreviated Zn. How many electrons does zinc have in its first shell?

• 8

• 197

• 79

• 2

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Correct. The first shell carries a maximum of 2 electrons.

Question 6

Points: 10 out of 10

Beryllium, Be, has an atomic number of 4 and an atomic mass of approximately 9. How many protons does a beryllium atom have?

• 5

• 9

• 4

• 13

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Correct! The atomic number is the number of protons.

Question 7

Points: 10 out of 10

An atom is converted into an ion by adding or removing ___________________.

• electrons

• neutrons

• protons

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Correct. When electrons are added or removed from an atom, the charge of the atom changes and the atom becomes an ion.

Question 8

Points: 10 out of 10

Zinc is abbreviated Zn. How many protons does zinc have?

• 30

• 35

• 95

•...