A 0.30 M solution of formic acid, HCHO 2, is 2.4% ionized. The ionization constant for formic acid is O a. 1.7 X 10-4 O b.7.2 x 10-3 O C.24 X 10-2 O d. 1.6 X 10-5

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

you need to have a picture of the atom that way we can answer it