Atomic And Molecular Masses
Chapter Name : Some Basic Concepts Of Chemistry |
Sub Topic Code : 102_11_01_07_01 |
Topic Name : Atomic And Molecular Masses |
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Sub Topic Name : Atomic Mass |
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Introduction
Atoms are tiny particles therefore to measure their weight; atomic mass unit (amu) is used. The reference atom is the C-12 atom which weighs 12.00 amu. All other masses are determined relative to C-12.
Pre-Requisites:
Mass, atom, element, carbon-12, particle
Real Life Question:
What is the weight of 10 atoms within a gold ring? How many atoms are there in a 10 g block of silver?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
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| Atomic mass | The atomic mass is the total mass of a single atom. |
Learning aids / Gadgets
| Gadgets | How it can be used |
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Practical examples around us
| Examples | Explainations |
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What you learn in Theory:
Atomic mass the total mass of a single atom. It is calculated relative to a C-12 atom.
What you learn in Practice:
All substances are made up of atoms. The total mass of any substance is equal to the mass of all the atoms within it.