Determine the energy, in J, of a photon with a
wavelength of 349 nm. (h =
6.626 x 10-34 J·s and c =
3.00 x 108 m/s)

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

i don,t know so just answer mine