how big is a nanometer
a nanometer is quite small a billionth of a meter it is 20 times wider than the diameter of a hydrogen atom in terms of the electromagnetic spectrum 1 nanometer is about the wavelength of soft x rays hard x rays and gamma rays have a shorter wavelengththe width of a dna double helix the molecule that carries our genetic code is about 2 nanometersn terms of the electromagnetic spectrum 1 nanometer is about the wavelength of soft x rays hard x rays and gamma rays have a shorter wavelength the width of a dna double helix the molecule that carries our genetic code is about 2 nanometers