New Zealand physicist who classified radiation into alpha, beta, and gamma types and discovered the atomic nucleus. He won the 1908 Nobel Prize in chemistry. |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
British chemist and physician who is credited with the discovery of nitrogen. |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
n. Abbr. rd A unit expressing the rate of decay of radioactive material, equal to one million disintegrations per second, or one million becquerels. [After Ernest Rutherford.] |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.