Chemistry

Explore simple chemistry notes covering elements, compounds, mixtures, chemical reactions, properties, and other important chemistry topics.

4 Articles

First 20 Elements of the Periodic Table with Atomic Number

First 20 Elements of the Periodic Table with Atomic Number

Learn the atomic numbers, symbols, and electronic configurations of the first 20 elements of the periodic table, from hydrogen to calcium.

Suspension: Definition, Properties and Examples

Suspension: Definition, Properties and Examples

Learn what a suspension is in chemistry, its key properties, common examples, particle size, settling behavior, and how suspensions differ from other mixtures.

Homogeneous Mixture and Heterogeneous Mixture

Homogeneous Mixture and Heterogeneous Mixture

Understand homogeneous and heterogeneous mixtures with simple definitions, characteristics, examples, and a clear comparison of their composition and properties.

118 Elements and Their Symbols and Atomic Numbers

118 Elements and Their Symbols and Atomic Numbers

Explore all 118 chemical elements with their names, symbols, and atomic numbers, along with useful information about the periodic table and element symbols.