Name and define six of the contagious diseases. 1. Conjunctivits; pinkeye, inflammation of mucous membrane around the eye. 2. Herpes sim 1 - fever blisters or cold sores. 3. Herpes zoster - shingles; painful skin condition from reactivation of chickenpox virus.
The scientific study of elements, atoms and molecules is called  Chemistry.   A person who practices this science is called a Chemist. 7 people found this useful.
In 1869 Russian chemist Dimitri Mendeleev started the development of the periodic table, arranging chemical elements by atomic mass. He predicted the discovery of other elements, and left spaces open in his periodic table for them.In 1886 French physicist Antoine Bequerel first discovered radioactivity.Thomson student from New Zealand Ernest Rutherford named three types of radiation; alpha, beta and gamma rays.n 1894 Sir William Ramsay and Lord Rayleigh discovered the noble gases, which were added to the periodic table as group 0. In 1897 English physicist J. J. Thomson first discovered electrons; small negatively charged particles in an atom. John Townsend and Robert Millikan determined their exact charge and mass.