Question

In his theory, Rutherford suggested that the postive charge and most of the mass of an atom is contained in a small dense nucleus, which is

surrounded by the electrons. Later, Bohr suggested the electrons themselves can travel only in specific orbits about the nucleus.

1. Scientific theories that have been changed are the only ones supported by scientists.

2.All scientific theories are subject to change and improvement.

3.Most scientific theories are the outcome of a single hypothesis.

4.Scientific theories are not subject to change

Answer 1

4

Step-by-step explanation:

........................................................