Which of the following is incorrect about Dalton’s atomic model? A. All atoms of the same element have same size

B. Atoms of different elements are different

C. Atoms consist of positive and negative particles

D. Atoms combine in definite ratio to form compounds

just did the assignment and the answer was #1 +2 n

fe 55.85 g/mol and h2o 18.02 g/mol.

answerspecific gravity;

percent abundance for cu-63 can be shown as:

63 x + 65 (1-x) = 62.9296

65 - 62.9296 = 2 x

x = 1.035

thus, percent abundance for cu-63 is 1.035

percent abundance for cu-65 can be shown as:

63 x + 65 (1-x) = 64.9278

65 - 64.9278 = 2 x

x = 0.0361

thus, percent abundance for cu-63 is 0.0361

the mass spectrum of cu-63 showing the intense peak as, this isotope is found in nature more abundantly around 92.38 % in comparison to cu-65 which is found 62.58 % naturally