1869, after the Dimitri Mendeleev discovery.
The element that comes last alphabetically in the periodic table is Zirconium (Zr).
Zirconium is having atomic number 40 in the periodic table. Its symbol is Zr.
Zirconium is a transition metal, group 4 (titanium family: titanium, zirconium, hafnium, rutherfordium) and period 5 in the periodic table of Mendeleev.
NIOBIUM
Zirconium or Zr
zirconium and hafnium
Periodic table (Mendeleev table) of the chemical elements.
Zirconium is a transition metal, group 4 (titanium family: Ti, Zr, Hf, Rf) and period 5 in the periodic table of Mendeleev.
Zirconium and titanium are in the group 4 (titanium group) of the periodic table of Mendeleev.
titanium zirconium hafnium rutherfordium
Zirconium - Zr
Zirconium is a transition metal, group 4 and period 5 in the periodic table of Mendeleev.