Compounds
Compounds are the substances consisting of two or more different types of elements in a fixed ratio of its atoms.
Example of compounds includes water (H2O), Hydrogen Peroxide (H2O2), etc. You can see water’s chemical formula, it says it has 2 atoms of Hydrogen combined with 1 atom of oxygen and in hydrogen peroxide, it has 2 atoms of hydrogen and two atoms of oxygen.
Elements
- Elements are species of atoms which have the same number of protons in their atomic nuclei.
- Elements are represented by symbols e.g.Hydrogen (H), Boron (B), Carbon (C), Silicon (Si) etc.
Metals
- Metal is a solid material which is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivity.
- Examples: Aluminium, Copper, Iron, Tin, Gold
Nonmetals
- Non-metals are brittle and are not malleable or ductile.
- They are poor conductors of heat and electricity.
- Examples: Carbon, Boron etc.
Metalloids
- Metalloids exhibit some properties of metals as well as of non-metals.
- Examples: Boron, silicon, germanium, arsenic, antimony, and tellurium
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