Question

below is a table showing different properties of the atom. number the statements to show the order in which they were discovered: electron shells protons electrons neutrons positive atomic nucleus

Explanation:

Electrons were discovered first in 1897 by J. J. Thomson. The positive atomic nucleus was discovered by Ernest Rutherford in 1911. Protons were identified as part of the nucleus around 1917 - 1919 by Rutherford. Neutrons were discovered by James Chadwick in 1932. Electron - shells were developed as part of the atomic model over time after the discovery of electrons and the nucleus, with significant contributions from Niels Bohr in 1913 and further refinements later.

Answer:

1. Electrons
2. Positive atomic nucleus
3. Protons
4. Neutrons
5. Electron shells