In 1809, John Dalton proposed the Atomic Theory that states that matter is made up of tiny particles called atoms and there are three particles namely; (i) the Proton having a positive charge; (ii) the Electron having a negative charge and (iii) the Neutron having no charge. Out of curiosity, why does your interesting question appear in the Breakups, Dating after Divorce category?
Bob Hopes
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The scientist who used a cathode ray tube to discover negatively charged subatomic particles was J.J. Thomson.
Albert Einstein was not involved in determining the structure of DNA. The scientists credited with this discovery are James Watson and Francis Crick, along with contributions from Rosalind Franklin and Maurice Wilkins.
According to scientist Rutherford, in the core of an atom is a positively charged nucleus and the nucleus is surrounded by negatively charged electrons.
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Robert Millikan
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Ernest Rutherford is the scientist who discovered that atoms have a positive charge. Through his gold foil experiment, he found that atoms have a small, positively charged nucleus at their center, surrounded by negatively charged electrons.
Archimedes is the scientist who shouted "Eureka" while taking a bath. He made this exclamation when he discovered a method for determining the volume of an irregular object using water displacement.
William Herschel could be called a scientist in some ways, but not exactly. Sir William Herschel is known as a composer and an astronomer. He is accredited for the discovery of Uranus after his music led him to an interest in mathematics, and then to astronomy,which inspired him to begin to build telescopes.
In determining the taxon based on morphology, a scientist typically considers observable physical traits and features of organisms to classify them into hierarchical groups. While genetic similarities can provide additional evidence to support taxonomic classification, morphology is the primary basis for assigning organisms to different taxonomic groups.