Atomic Structure - Set I
Overview
Atomic structure is the study of the structure of the atom, focusing on the composition and arrangement of its subatomic particles.
Key Concepts
- Subatomic Particles: Atoms are composed of three subatomic particles: protons, neutrons, and electrons.
- Atomic Number: The number of protons in the nucleus of an atom. It determines the identity of an element.
- Mass Number: The total number of protons and neutrons in the nucleus of an atom.
- Isotopes: Atoms of the same element with different numbers of neutrons.
- Electron Configuration: The arrangement of electrons in the energy levels or shells around the nucleus of an atom.
Study Guide
1. Subatomic Particles
What are the three subatomic particles and their respective charges and locations within an atom?
- Proton: Positive charge, located in the nucleus
- Neutron: Neutral charge, located in the nucleus
- Electron: Negative charge, located in energy levels or shells outside the nucleus
2. Atomic Number and Mass Number
Define atomic number and mass number. How are they related to the identity of an element?
- Atomic number: Number of protons in the nucleus; determines the element's identity
- Mass number: Total number of protons and neutrons in the nucleus
3. Isotopes
Explain what isotopes are and provide an example of an element with isotopes.
Isotopes are atoms of the same element with different numbers of neutrons. For example, carbon-12 and carbon-14 are isotopes of carbon.
4. Electron Configuration
What is electron configuration and how is it represented for different elements?
Electron configuration is the arrangement of electrons in the energy levels or shells around the nucleus of an atom. It is represented using the electron configuration notation, which shows the distribution of electrons by energy level and orbital type.
[Atomic Structure - Set I] Related Worksheets and Study Guides:
.◂Chemistry Worksheets and Study Guides High School. Atomic Structure - Set I
Worksheet/Answer key
Worksheet/Answer key