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Punjab Chemistry Online 9th Class Test Lesson 2 Structure of Atom

Test Instructions
Test Name : 9th Class Chemistry Test 2
Subject : Chemistry
Test Type : Mcqs
Total Question : 12
Total Marks : 24
Total Time : 30 Minutes

According to Dalton that An Atom is and invisible, hard dense sphere, Atoms of the same element are alike, Atoms combine in different ways to form a compound. In 1932 James chadwick discovered a neutron. When he bombarded alpha particles on a beryllium target He observed that highly penetrating radiations were produced.

Structure of Atom Lesson 2 Chemistry Online Test 9th Below

This quiz must be completed in 30 minutes.

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