Energy Levels:Electrons are arranged in energy levels or shells, with the innermost shell closest to the nucleus and higher energy levels located further away.
Understand the concept of isotopes and how they relate to the mass number of an element.
Explore the periodic table and learn about the organization of elements based on their atomic number and properties.
Practice identifying elements based on their atomic number and mass number, and understand how to write the symbol for an element in standard notation.
By mastering these key points, you will have a solid understanding of atoms and their role as the fundamental building blocks of matter.
Explain how Earth's fluid outer core creates the magnetosphere and how this helps protect both humans and technology (such as satellites) from solar winds.