The Bohr radius is a unit of length that is equal to the radius of the orbit of the electron in a hydrogen atom. It is named after Danish physicist Niels Bohr, who developed the Bohr model of the atom.

The Bohr radius is approximately equal to 5.29 x 10-11 meters, or 0.529 angstroms. What is the radius of 1st Bohr orbit? The radius of the first Bohr orbit is approximately 5.29 x 10-11 m. This is based on the assumption that the electron is a point particle with no size.

##### What is the radius of nth Bohr orbit?

The radius of the nth Bohr orbit is given by the following formula:

r = n^2 * R

where R is the Bohr radius. This formula is derived from the Bohr model of the atom, which postulates that electrons orbit the nucleus at discrete energy levels. The higher the energy level, the larger the radius of the orbit.

### What is the formula of radius of electron?

The formula for the radius of an electron is:

r = R0 * Z^(-1/3)

where R0 is the so-called "classical electron radius" and Z is the number of protons in the nucleus. What is the radius of the 5th Bohr orbit? The radius of the 5th Bohr orbit is approximately 10.4 angstroms.

### What is the formula of radius of an atom?

The formula for the radius of an atom is:

r = R0*(Z^(1/3))

where R0 is the atomic radius constant and Z is the atomic number.