Question

modern elements of elements is given by​

Answer 1

Explanation:

Mendeleev's Periodic Table. Mendeleev, who first published his periodic table in 1869 (Figure 3.2. 1), is usually credited with the origin of the modern periodic table.

Answer 2

Answer:

Mendeleev's Periodic Table. Mendeleev, who first published his periodic table in 1869 is usually credited with the origin of the modern periodic table.