The human eye contains a molecule called 11-cis-retinal that changes conformation when struck with light of sufficient energy. the change in conformation triggers a series of events that results in an electrical signal being sent to the brain. the minimum energy required to change the conformation of 11-cis-retinal within the eye is about 164 {\rm kj}/{\rm mol}.calculate the longest wavelength visible to the human eye.

1.21 × 10⁻³⁰ m

Explanation:

164 kJ of energy (E) are required to change the conformation of 1 mole of 11-cis-retinal. The wavelength (λ) of the radiation having such energy can be calculated through the Planck-Einstein equation.

E = h . ν = h . c . λ⁻¹

where,

h is the Planck constant

ν is the frequency

c is the speed of light

λ is the wavelength

because u need two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei to form isotopes.

so since they all have the same shape? i mean maybe because m& m and reeses are both chocolates