Atomic Models
Chapter Name : Structure Of Atom |
Sub Topic Code : 102_11_02_02_03 |
Topic Name : Atomic Models |
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Sub Topic Name : Atomic Number And Mass Number |
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Introduction
Symbol of an atom consists of its mass number and atomic number
Pre-Requisites:
Sub-atomic particles
Activity:
Observe the periodic table. Randomly pick elements from periodic table and check the no. of protons, electrons and neutrons.
Real Life Question:
What makes one element different from the other?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Atomic number Mass number , nucleons | Number of protons in the atom Number of protons + neutrons in the atom |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Periodic table | See the symbols of various elements and figure out their mass number and atomic number |
Real life uses :
Helps us determine the chemical properties of an element
Practical examples around us
| Examples | Explainations |
|---|---|
| All elements around us |
What you learn in Theory:
Atomic number and mass number
What you learn in Practice:
How to calculate no. of protons neutrons and electrons from its symbol?