Meitnerium is placed in the group 9 and period 7 of the periodic table of Mendeleev; the atomic number is 109. Meinerium is considered an artificial solid metal, radioactive, unstable.
Meitnerium is in the period 7 of the periodic table of elements.
Alkaline earth solid metal , group 2, period 2, atomic number 4
Meitnerium is located now in the group 9 and period 7 of the periodic table of Mendeleev.
Meitnerium is located in the group 9 and period 7 of the periodic table of Mendeleev.
The atomic number of the Periodic Table element Period is 92.
The second element in Period 3 is Magnesium, with an atomic number of 12.
It is a period 3 element.
The period number of an element is the row in which it appears.
Period Number: 2 Group Number: 18
The fifth period transition element with the greatest atomic number is tantalum (element 73).
The element with the lowest atomic number in period 3 is sodium (Na) with an atomic number of 11.
Classification of hydrogen is: group 1, period 1 in the periodic table of Mendeleev; hydrogen is the first element in this table.