When light passes through an object unchanged, scientists call that process
a. scattering
b. absorption
c. transmission

Answer:

When light passes through an object unchanged, scientists call that process Transmission.

Explanation:

Transmission is the process where all the light that is passed through the material moves via the material without being absorbed. The Transmission depends on the affected radiation.The Transmittance of the medium is defined as the ratio between transmitted radiant power and incident radiant power. The light that is passed through the medium and not reflected will be either scattered or reflected. The light can be transmitted only through transparent or translucent material. Opaque object does not allows transmission of light.

atomic = no of protons.

mass number-atomic number = neutron number