- Chemical Formula in Balanced Chemical Equations: Represents elements or compounds, predicted using ions, must have equal positive and negative charges
- Pure Substance and Mixtures Separation: Pure substance has only one element or compound, mixtures can be separated by physical processes like filtration, crystallization, and distillation
- Atomic Structure and Atomic Models: Ideas about atoms changed over time, new models developed based on experimental evidence, including John Dalton, JJ Thomson, and Ernest Rutherford
- Groups in the Periodic Table: Groups contain elements with similar properties, such as noble gases in Group 0 and alkali metals in Group 1
- Group 7 Elements: Contains halogens, highly reactive non-metals that readily form compounds
Understanding and studying these concepts provides valuable insights into the fundamental nature of chemical compounds and the behavior of atoms and elements.
