These groups are groups 3 to 12 (transition metals) containing each four chemical elements.
Group 3 of the periodic table contains many of the radioactive elements.
Group 16 of the periodic table of the elements (chalcogens elements)
Periodic table consists of elements not cations. However group 1 and group 2 elements (left side of the periodic table) are elements which will form cations easily.
Group 1 on the periodic table, also known as the alkali metals group, contains 6 elements: hydrogen, lithium, sodium, potassium, rubidium, and cesium. It is located on the far left side of the periodic table.
Group 3a (13) on the periodic table contains boron which is considered a metalloid. The other elements in the group are post-transition metals.
Group 3, the transition elements.
Group 3 of the periodic table contains many of the radioactive elements.
Group 16 of the periodic table of the elements (chalcogens elements)
Astatine is a member of the group 17 (halogens) of the periodic table of elements.
Group 3 through Group 13
Group 18, otherwise known as the noble gases.
Group 16 on the Periodic Table, also known as the chalcogens, contains elements that react with oxygen to form compounds with the general formula X2O. The elements in this group include oxygen, sulfur, selenium, tellurium, and polonium.
In the Periodic Table of the Elements, a column (group) contains all elements that exist with the group number of electrons in the outer energy level of an atom of that element.
Periodic table consists of elements not cations. However group 1 and group 2 elements (left side of the periodic table) are elements which will form cations easily.
This is the group 18 of the periodic table of Mendeleev.
Noble gases or group 18
Halogens are in the group 17 of the periodic table of Mendeleev.