Scientific Notation
Scientific notation is a way to express very large or very small numbers, making them easier to read and work with. It is represented in the form of ( a \times 10^n ), where ( a ) is a number greater than or equal to 1 and less than 10, and ( n ) is an integer. Key examples include:
The speed of light: ( 2.998 \times 10^8 ) m/s
The charge of an electron: ( -1.602 \times 10^{-19} ) C.