Term 1 Unit 4 | 7th Science - Atomic Structure | 7th Science : Term 1 Unit 4 : Atomic Structure
Chapter: 7th Science : Term 1 Unit 4 : Atomic Structure
Atomic Structure
Unit 4
Atomic Structure
Learning Objectives
* To know the structure of an atom.
* To know the position
of the subatomic particle, understand and compare the properties of subatomic
particles.
* To understand the
term atomic number and mass number.
* To calculate the
number of protons, electrons and neutrons in an atom from the symbols in the periodic
table.
* To understand the
term valency
Introduction
In the last chapter we have studied
anything around us is matter and is made up of molecules. The molecules are
combination of atoms of different elements or the same element.
ACTIVITY 1
Some known objects are
shown, also the broken particles of the objects are shown.
1. Name the articles
or objects you see here? Also try to write What each of it made of?
1. Hammu (Iron)
2. Bangles (gold)
3. Tap (nickel)
4. Versal (copper)
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