mendeleev
Because those elements were not known when he formulated his periodic table.
Erwin Schrödinger, an Austrian-born physicist, is known for formulating the theoretical basis for the periodic table through his development of wave mechanics in quantum physics. His equation, known as the Schrödinger equation, provides a mathematical description of how the quantum state of a physical system changes over time.
ES stands for Einsteinium in the Periodic table. It is named after the physicist Albert Einstein.
Because noble gases were not discovered when Mendeleev formulated his periodic table
=== ===Dmitri Mendeleev was a Russian chemist who formulated the periodic table.
The periodic table was first proposed by a Russian chemist Dimitri Mendeleev. The modern periodic table ordered by atomic number was proposed by an English physicist, Henry Moseley.
He formulated the Periodic Law and revised and predicted the Periodic Table of Elements in some important ways.
he formulated an early version of the periodic table based on atomic mass
Meitnerium, element number 109 of the table of elements.
Lr stands for Lawrencium. Its atomic number is 103.
In the periodic table, "Rf" stands for Rutherfordium. Rutherfordium is a synthetic element with the atomic number 104 and is a member of the transactinide series. It is named after physicist Ernest Rutherford.
Usually credited to Dmitri Mendeleev.