Scientists, including Ernest Rutherford, started testing atomic structure theory in the early 1800’s. What was Rutherford’s key contribution to the atomic theory of matter?

A
Elements can form compounds.
B
Atoms contain a central nucleus.
C
Electrons are negatively charged particles.
D
Matter cannot be divided infinitely and retain its properties.

1 answer

Rutherford's key contribution to the atomic theory of matter was B: Atoms contain a central nucleus. His gold foil experiment famously demonstrated that atoms have a dense, positively charged nucleus at their center, leading to the understanding of atomic structure as we know it today.