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IB Chemistry

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TOPIC 2/12: ATOMIC STRUCTURE

2.1 The nuclear atom

2 Lessons
|
2 Quizzes
1. Atomic structure
  1. Atomic structure QUIZ (paper 1)
2. Isotopes and relative atomic mass
  1. Isotopes and relative atomic mass QUIZ (paper 2)
2.2 Electronic configuration

3 Lessons
|
3 Quizzes
12.1 Electrons in atoms (HL)

2 Lessons
|
3 Quizzes
1. Energy calculations
  1. Energy calculations QUIZ (paper 2)
2. Trends in ionization energy
  1. Trends in ionization energy QUIZ (paper 1)
  2. Trends in ionization energy QUIZ (paper 2)

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Atomic structure QUIZ (paper 1)

IB Chemistry 2.1 The nuclear atom Atomic structure Atomic structure QUIZ (paper 1)

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Question 1 of 7

1. Question
Which list correctly gives the approximate relative masses of each subatomic particle?
- Protons: 0 | Neutrons: 1 | Electrons: 0
- Protons: 1 | Neutrons: 1 | Electrons: 0
- Protons: 0 | Neutrons: 0 | Electrons: 1
- Protons: 1 | Neutrons: 0 | Electrons: -1
Correct

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Question 2 of 7

2. Question
Which of these sets of statements is correct about isotopes?
- Same number of electrons; different number of neutrons; same mass number
- Different number of electrons; same number of neutrons; different mass number
- Same number of electrons; different number of neutrons; different mass number
- Different number of electrons; same number of neutrons; same mass number
Correct

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Question 3 of 7

3. Question
Isotopes tend to have similar chemical properties because:
- They have similar relative atomic masses
- They have the same number of protons and neutrons
- They have similar physical properties
- They have the same number of protons and electrons
Correct

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Question 4 of 7

4. Question
Which of these is an isotope of ³⁵Cl?
- ³⁵Cl^–
- ³⁵Cl^2-
- ³⁵S
- ³⁷Cl
Correct

Incorrect
Question 5 of 7

5. Question
With the help of the periodic table provided, identify the correct notation for a bromine atom with 46 neutrons and 36 electrons
- ⁸¹Br^–
- ⁴⁶Br^–
- ⁸²Br
- ⁸¹Br
Correct

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Question 6 of 7

6. Question
Which statement about the species ⁶³Cu²⁺ and ⁶⁵Cu⁺ is correct?
- They are both allotropes of each other
- They have different numbers of protons
- ⁶⁵Cu⁺ has 28 electrons while ⁶³Cu²⁺ has 27 electrons
- They have the same number of neutrons
Correct

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Question 7 of 7

7. Question
Which of these would be the correct notation for a species with 3 protons, 4 neutrons and 2 electrons?
- ⁷Li⁺
- ⁶Li
- ⁷N^2-
- ⁴Li⁺
Correct

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