Question

Which of the following explains how one of the postulates in John Dalton's atomic theory was later subjected to change?

Choice 1

Various scientists found that all atoms of a particular element are identical

Choice 2

Some scientists found that atoms combine in simple whole number ratios to form compounds.

Choice 3

Various scientists found that atoms consist of subatomic particles with varying mass and charge.

Choice 4

Some scientists found that bonds between atoms are broken, rearranged, or reformed during reactions.

Answer 1

Choice 3: Various scientists found that atoms consist of subatomic particles with varying mass and charge, explains how one of the postulates in John Dalton's atomic theory was later subjected to change. Dalton's theory originally proposed that atoms were indivisible and indestructible, but later experiments showed that atoms actually consisted of subatomic particles such as protons, neutrons, and electrons. This discovery led to the development of new atomic models, such as the Rutherford model and the Bohr model.

Answer 2

Choice 3 explains how one of the postulates in John Dalton's atomic theory was later subjected to change. Various scientists found that atoms consist of subatomic particles with varying mass and charge. This discovery led to the modification of Dalton's postulate that stated that all atoms of a given element are identical. The discovery of subatomic particles such as protons, neutrons, and electrons showed that atoms are composed of these particles, and different isotopes of an element can have varying numbers of neutrons while still belonging to the same element.