Question

mendelefs periodic table plz​

Answer 1

Answer:

Hii mate here is your answer.

Answer 2

Dmitri Ivanovich Mendeleev (born 8 February (O.S. 27 January) 1834 near Tobolsk – 2 February (O.S. 20 January 20) 1907 in Saint Petersburg) was a Russian chemist who created the periodic table of elements. Many of the predictions made in his periodic table (such as the properties of elements undiscovered at the time) were later proved correct by experiments. Chemical element 101 was named Mendelevium.

Others in the 1860s suggested that elements group together. For example, John Newlands, published his Law of Octaves in 1865. The lack of spaces for undiscovered elements and the placing of two elements in one box were criticized and his ideas were not accepted. Another was Lothar Meyer, who published a work in 1864, describing 28 elements. Neither attempted to predict new elements. In 1863 there were 56 known elements with a new element being discovered at a rate of approximately one each year.