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Questions and Answers
What is the relative charge of a proton?
What is the relative charge of a proton?
- Negative
- Neutral
- Positive (correct)
- Variable
Which defines the nucleon number (mass number) of an atom?
Which defines the nucleon number (mass number) of an atom?
- Total number of protons and neutrons in the nucleus (correct)
- Total number of protons in the nucleus
- Total number of protons and electrons in the nucleus
- Total number of electrons in the nucleus
What are isotopes?
What are isotopes?
- Atoms of different elements with the same proton number
- Atoms of the same element with the same proton number but different nucleon number (correct)
- Atoms of the same element with the same proton number and nucleon number
- Atoms of different elements with different proton and neutron numbers
What is the basis of the Periodic Table?
What is the basis of the Periodic Table?
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What are the two types of isotopes?
What are the two types of isotopes?
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Study Notes
Proton Charge and Nucleon Number
- A proton has a relative charge of +1, contributing to the positive charge of atomic nuclei.
- The nucleon number, also known as the mass number, represents the total number of protons and neutrons in an atom's nucleus.
Isotopes
- Isotopes are variants of a particular chemical element that differ in neutron number, resulting in different mass numbers.
- Isotopes of an element share the same number of protons but have different physical properties, such as stability and radioactivity.
Basis of the Periodic Table
- The periodic table is organized based on increasing atomic number, which reflects the number of protons in the nucleus.
- Elements are grouped with similar chemical properties into columns known as groups or families.
Types of Isotopes
- There are two primary types of isotopes: stable isotopes and radioactive isotopes (or radionuclides).
- Stable isotopes do not undergo radioactive decay, while radioactive isotopes decay over time, emitting radiation.
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Description
Test your knowledge of atomic structure and the periodic table with this IGCSE Chemistry study notes quiz. Explore topics like the relative charges and masses of protons, neutrons, and electrons, as well as definitions of proton number and nucleon number. Perfect for revising Unit 3: Atoms, Elements & Compounds.
