Noble gasses
1. Ununoctium is placed in the group 18 and period 7 of the periodic table of Mendeleev. 2. Ununoctium is a transactinoid chemical element.
Dmitri Mendeleev did not discover the noble gases as they were not known at the time he created the periodic table. The noble gases were discovered later by other scientists. Mendeleev's periodic table focused on arranging elements by atomic mass and properties to show periodic trends.
Oxygen is in the group 16 of the periodic table of Mendeleev - chalcogenides group.
Noble gases are in the group 18 of the periodic table of Mendeleev.
Seaborgium is a man made chemical element, radioactive, unstable, atomic number 106, placed in the group 6 and period 7 of the periodic table of Mendeleev. Sg is a metal, solid with a formidable predicted density; it is a member of the transactinides family.
Rutherfordium is a transition metal, group 4, period 7 of the periodic table of Mendeleev. It is a transactinoid.
1. Bohrium is placed in the group 7 and period 7 of the periodic table of Mendeleev. 2. Bohrium is also a transactinoid chemical element.
"Family of elements" is the synonym of group (column) in the periodic table of Mendeleev.
Seaborgium is a man made chemical element, radioactive, unstable, atomic number 106, placed in the group 6 and period 7 of the periodic table of Mendeleev. Sg is a metal, solid with a formidable predicted density; it is a member of the transactinides family.
1. Ununoctium is placed in the group 18 and period 7 of the periodic table of Mendeleev. 2. Ununoctium is a transactinoid chemical element.
Dmitri Mendeleev did not discover the noble gases as they were not known at the time he created the periodic table. The noble gases were discovered later by other scientists. Mendeleev's periodic table focused on arranging elements by atomic mass and properties to show periodic trends.
Oxygen is in the group 16 of the periodic table of Mendeleev - chalcogenides group.
Noble gases are in the group 18 of the periodic table of Mendeleev.
Group 16 of the Mendeleev periodic table (chalcogens).
Rutherfordium is an artificial chemical element, radioactive, unstable, metal, member of the transactinoids family, it is in the group 4 and period 7 of the periodic table of Mendeleev, etc.
Seaborgium is a man made chemical element, radioactive, unstable, atomic number 106, placed in the group 6 and period 7 of the periodic table of Mendeleev. Sg is a metal, solid with a formidable predicted density; it is a member of the transactinides family.
Seaborgium: group 6, period 7 - in the periodic table of Mendeleev.