Atomic Structure

State Council of Educational Research and Training, Tamil Nadu (2020) Atomic Structure. [Teaching/Learning Resource]

[thumbnail of Science, Standard 9 Chapter 11] Text (Science, Standard 9 Chapter 11)
Junior-Secondary-Science-Chapter11-Atomic-Structure.pdf - Published Version
Download (890kB)
[thumbnail of Prelims] Text (Prelims)
Junior-secondary-Prelims.pdf - Supplemental Material
Download (217kB)
Abstract

Just as a small child wants to take a toy apart to find out what is inside, scientists have for long been curious about the internal structure of an atom. They wanted to find out what are the particles present inside an atom and how are these particles arranged in an atom. For explaining this many scientists proposed various atomic models.

Item Type: Teaching/Learning Resource
Program: A publication under Free Textbook Programme of Government of Tamil Nadu
Learning outcomes: After studying this chapter, students will be able to �� understand Rutherford’s gold foil experiment. �� identify the limitations of Rutherford’s model. �� explain the main postulates of Bohr’s atomic model. �� compare the charge and mass of sub-atomic particles. �� calculate number of protons, neutrons and electrons from the given atomic number and mass number of an element. �� draw the atomic structure of first 20 elements. �� differentiate isotopes, isobars and isotones. �� assign valency of various elements based on the number of valence electrons. �� recognize the significance of quantum numbers. �� state and illustrate the laws of multiple proportion, reciprocal proportion and combining volumes.
Access: Open
Uncontrolled Keywords: Chemistry
Subjects: Science General
Chemistry
Curriculum Level: Senior Secondary
Related URLs:
Depositing User: Unnamed user with email prasad@gmail.com
Date Deposited: 24 Mar 2025 05:21
Last Modified: 24 Mar 2025 05:21
URI: https://staging.oer4pacific.org/id/eprint/396

Actions (login required)

View Item
View Item