The half life of iodine-131 is 8.040 days. What percentage of an iodine-131 sample will remain after 40.20 days?

"the periodic table is arranged in order of atomic number."

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

yes

ya te ayud espera

може ли да зареждате повече информация, моля