Answer:
By 1920, physicists knew that most of the mass of the atom was located in a nucleus at its center, and that this central core contained protons. In May 1932 James Chadwick announced that the core also contained a new uncharged particle, which he called the neutron. Chadwick was born in1891 in Manchester, England.
Explanation:
It is option D. Please mark as brainliest
Answer:
James Webb Space Telescope
Explanation:
Answer:
please insert the chart or table 27.1
The answer is C. heliobactir Pylori