In 1669 an amateur chemist attempted to create the philosophers stone which could turn metal to pure gold. Help Insert ParagraphUndoes the last commandRedoes the last commandTabUntabSet a bold styleSet a italic styleSet a underline styleSet a strikethrough styleClean a styleSet left alignSet center alignSet right alignSet full alignToggle unordered listToggle ordered listOutdent on current paragraphIndent on current paragraphChange current block's format as a paragraph(P tag)Change current block's format as H1Change current block's format as H2Change current block's format as H3Change current block's format as H4Change current block's format as H5Change current block's format as H6Insert horizontal rulelinkDialog.show Summernote 0.8.11 · Project · Issues
However he ended up discovering phosphorous.
Then by 1809 there were 47 known elements.
And scientists started to see a trend in characteristics
In 1863 English chemist John Newlands divided the 56 elements into 11 groups, based on characteristics.
In 1869 Dimitri Mendeleev began the creation of the periodic table, placing elements by atomic mass.
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.
In 1894 Sir William Ramsay and Lord Rayleigh discovered the noble gases. In 1897 English physicist J. J. Thomson first discovered electrons
In 1903 Rutherford declared that radioactivity is caused by the breakdown of atoms. In 1911 Rutherford and German physicist Hans Geiger discovered that electrons orbit the nucleus. In 1913 Bohr discovered that electrons move around a nucleus in discrete energy.
Rutherford first identified protons in the atomic nucleus. In 1932 James Chadwick first discovered neutrons, and isotopes were identified. This was the complete basis for the periodic table.