Topic study hub
Atomic structure and the Periodic Table
Explain that an atom consists of a central nucleus made up of neutrons and protons, with electrons orbiting in shells around it.
6
Objectives
60
Flashcards
42
Questions
90 min
Study time
CambridgeIGCSEChemistryAtoms, elements and compounds
Choose a revision tool
Start revising Atomic structure and the Periodic Table
Syllabus checklist
What you need to know
6 objective pages available
Atomic structure and the Periodic Table outcomes6 objectives
- Explain that an atom consists of a central nucleus made up of neutrons and protons, with electrons orbiting in shells around it.
- Identify the relative charges and masses of protons, neutrons, and electrons.
- Clarify that the proton number, also known as atomic number, refers to the number of protons found in an atom's nucleus.
- Clarify that the mass number, or nucleon number, is the sum of protons and neutrons in an atom's nucleus.
- Calculate the electronic configuration for elements and their ions with proton numbers ranging from 1 to 20, such as 2,8,3.
- Recognize that: (a) noble gases in Group VIII have a complete outer electron shell, (b) the number of outer shell electrons corresponds to the group number for Groups I to VII, and (c) the number of occupied electron shells matches the period number.
Key terms
DescribeStateDefineDetermine
Exam tips
No exam tips are published for this topic yet.
Common mistakes
No common mistakes are published for this topic yet.
Practice preview
Continue by objective
Objectives are grouped by subtopic so students can jump straight to the exact skill they want to revise.
Related topics