ZIMSEC O-Level Combined Science
7.2.2.3Atomic structure and bonding
Atomic structure and bonding in ZIMSEC O-Level Combined Science: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic91 practice questions5 lessons
Overview
Form 3.
Learning objectives
What the syllabus expects you to be able to do.
- 7.2.2.3.1Name the sub-atomic particles and state their relative charges, masses and positions.
- 7.2.2.3.2Define proton number and mass number, use nuclide notation, calculate numbers of neutrons and define isotopes.
- 7.2.2.3.3Name the first 20 elements with their symbols and write their electronic configurations.
- 7.2.2.3.4Describe ionic and covalent bonding.
Lessons
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Atomic structure
25 min
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Covalent bonding and simple molecules
30 min
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Electronic configuration
25 min
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Ionic bonding
30 min
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Isotopes
25 min
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Sample question
A sample question on this topic. Answer it, check it, then read the worked answer.
Exam style
Turn Atomic structure and bonding into a strength.
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