What is the atomic number of Carbon as per Mendeleev's Periodic Table?

6

The correct answer is option (2) 6.

The atomic number of Carbon on the Mendeleev's Periodic Table and the modern periodic table is 6.

It's important to note that while Mendeleev's periodic table was a revolutionary step towards the modern periodic table, it didn't always have the exact order of elements or their precise atomic numbers due to the limitations of the scientific understanding at the time.