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Atomic structure and the Periodic Table
Explain the atom's structure, which consists of a central nucleus made up of neutrons and protons, with electrons arranged in shells around it.
6
Objectives
60
Flashcards
42
Questions
90 min
Study time
CambridgeIGCSECombined ScienceAtoms, elements and compounds
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Atomic structure and the Periodic Table outcomes6 objectives
- Explain the atom's structure, which consists of a central nucleus made up of neutrons and protons, with electrons arranged 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.
- Identify the electronic configuration for elements with atomic numbers ranging from 1 to 20, such as 2,8,3.
- Recognize that: (a) noble gases in Group VIII have a complete outer 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.
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