Question

List the postulates of Dalton’s that continue to have significance (are retained in the modern atomic theory). 2

Answer 1

Some postulates from Dalton's atomic theory that have retained significance are that elements are composed of atoms and that atoms of the same element are identical but differ from atoms of other elements. However, advancements in science have led to the knowledge that atoms are divisible into subatomic particles and that isotopes exist.

Step-by-step explanation:

Dalton's Atomic Theory Postulates

Some postulates of Dalton's atomic theory that retain their significance in modern atomic theory include:

1. Elements are composed of tiny indivisible particles called atoms.
2. Atoms of any one element are identical to each other but different from atoms of any other element.

It is essential to note that, while Dalton's theory laid the foundation for the modern atomic theory, some aspects have been refuted or revised with the advancement of scientific understanding. For example, we now know that atoms are divisible into subatomic particles, that not all atoms of an element are identical due to isotopes, and that atoms can be transformed in nuclear reactions.