Wich of the following was originally a tenet of Dalton's atomic theory, BUT had to be revised about a centery ago??
a) Atoms are tiny indivisible particles
b) atoms of the same element are identical
c) compounds are made by combing atoms
d) atoms of different elements can combine with one another in simple, whole number ratios

Question

aaronq · Answer

probably a, since there are subatomic particles that make up the atom thus not indivisible

cwrw238 · Answer

yup

anonymous · Answer

how about letter b for isotopes? the discovery of deuterium was about 100 years ago by columbia chemist Harold Urey