Dihydrogen H2
Chapter Name : Hydrogen |
Sub Topic Code : 102_11_09_02_02 |
Topic Name : Dihydrogen H2 |
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Sub Topic Name : Isotopes Of Hydrogen |
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Introduction
• Hydrogen element has 3 isotopes namely protium, deuterium and tritium. • Protium does not contain any neutrons in the nucleus, while deuterium contains 1 and tritium 2 neutrons. • All the 3 isotopes have identical chemical properties but different physical properties due to difference in mass.
Real Life Question:
How does hydrogen occur in nature?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Isotopes | They are different forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei. |
| Protium | It is an isotope of hydrogen which has no neutrons in its nucleus. |
| Deuterium | It is an isotope of hydrogen which has 1 neutron in its nucleus. |
| Tritium | It is an isotope of hydrogen which has 2 neutrons in its nucleus. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| NCERT textbook | See table 9.1 for different properties of the 3 isotopes. |
Real life uses :
• Protium is used in hydrogenation of material such as nitrogen and coal to get useful products. • Deuterium is used in making hydrogen bombs. • Tritium is used in nuclear fusion reactions.
Practical examples around us
| Examples | Explainations |
|---|---|
| Water bodies | Water is a combined form of hydrogen. |
What you learn in Theory:
The different isotopes of hydrogen.
What you learn in Practice:
Uses of different isotopes of hydrogen.