| According to him, the first participation begins Sunday for one week in the Mendeleyev Chemistry Olympiads in Armenia with four students representing the country. |
| The steadily increasing weights gave Mendeleyev, Meyer, and others a kind of index by which to order the elements and reveal their periodic behaviour. |
| Russian chemist Dmitri Mendeleyev further developed Siemens' idea over the next couple of decades. |
| Which key concept in chemistry did Dmitry Mendeleyev help define? |
