11 billion is 11,000,000,000 in standard form.
Its scientific notation is:
1.1 x 10¹⁰
In writing a scientific notation, there must only be 1 digit before the decimal number.
1.1 is the coefficient of the scientific notation
10 is the base
¹⁰ is the exponent, It is a positive exponent. This means that the decimal point moved from the right of the number to its left.