Isotopes

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Isotopes are variants of a particular chemical element which differ in neutron number, and consequently in nucleon number. All isotopes of a given element have the same number of protons but different numbers of neutrons in each atom. Further Access eLearn Digital content/ videos on mobile Download eLearn App from Google play store. • Android App: • http://bit.ly/2RBzptk • For More Information: • Website: • https://elearn.gov.pk/ • Web App: • https://elearn.gov.pk/onlineApp/index... • E-MAIL: • [email protected] • eLearn is the official repository of digitized textbooks of Punjab. Each book has been augmented with Video Lectures, Illustrations, Animations, Simulations and Interactive Assessments. Through this website, you can access 30 Science and Maths textbooks for Grade 4-12 which have been augmented with 13,047 Video Lectures, 592 Simulations, 2100 Audio minutes and 1,830Animations. eLearn is developed by Punjab Information Technology Board in collaboration with Punjab Curriculum Textbook Board and the School Education Department.

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