Isotopes
Chapter Name : Structure Of The Atom |
Sub Topic Code : 102_09_04_06_01 |
Topic Name : Isotopes |
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Sub Topic Name : Isotopes |
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Introduction
• Scientists showed that hydrogen atoms showed three different masses. • Isotopes are the atoms of the same element having the same atomic number but different mass numbers. • The chemical properties of isotopes are similar but their physical properties are different.
Pre-Requisites:
Daltons atomic theory, molecules, electrons
Activity:
An isotope of cobalt is used in the treatment of cancer.
Real Life Question:
What are isotopes?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Isotope | • The atoms of the same element having the same atomic number but different mass numbers. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| A racing track | Centre of the track is the nucleus having protons and neutrons, the running tracks are the orbits and the racers are the electrons. |
Real life uses :
Isotope of uranium is used as a fuel in nuclear reactors.
Places to visit :
Laboratory.
Practical examples around us
| Examples | Explainations |
|---|---|
| A racing track | Centre of the track is the nucleus having protons and neutrons, the running tracks are the orbits and the racers are the electrons. |
What you learn in Theory:
• Scientists showed that hydrogen atoms showed three different masses • Isotopes are the atoms of the same element having the same atomic number but different mass numbers. • The chemical properties of isotopes are similar but their physical properties are different.
What you learn in Practice:
Isotopes have various uses.