In the periodic table have four new item – BBC Russian

In the periodic table of chemical elements known as the periodic table, we have four new item.

All four elements were discovered a few years ago, but experts took the time to double-check information . Now the seventh row of the table is filled completely.

In the new elements, bearing the numbers 113, 115, 117 and 118 is no permanent name. Scientists have come up with them later. All four elements are super heavy.

The discoverer of elements 115, 117 and 118 are recognized by the international research team consisting of Russian and American scientists.

The group also claimed the right to be considered the discoverer of the element 113 but in the end, experts consolidated the discovery of scientists from Japan.

The last time changes to the periodic table of the chemical elements were introduced in 2011. Then she added the elements 114 and 116.

The periodic table has been drawn up chemist Dmitri Mendeleev in the middle of the XIX century. Its initial version included a 63 element.