Radium is a member of the group 2 (alkaline earth metals) of the periodic table of Mendeleev; the other members are beryllium, calcium, magnesium, strontium, barium
Group 2 (alkaline earth metals): beryllium, calcium, magnesium, strontium, barium, radium.
The alkaline earth metals are beryllium, magnesium, calcium, strontium, barium, and radium. These elements are all metallic in nature and share similar chemical properties, including the ability to react vigorously with water. They are located in Group 2 of the periodic table.
Barium.
6: beryllium, magnesium, calcium, strontium, barium, and radium.They are generally referred to as alkaline earth metals.
Beryllium, magnesium, calcium, strontium, barium, and radium.
Six elements are there. And they are: beryllium, magnesium, calcium, strontium, barium, radium
Group 2 elements or alkaline earth metals are beryllium, magnesium, calcium, strontium, barium and radium
Beryllium, Magnesium, Calcium, Strontium, Barium and Radium.
Beryllium, Magnesium, Calcium, Strontium, Barium and Radium.
Beryllium, Magnesium, Calcium, Strontium, Barium, Radium
Calcium is a member of group 2, whose elements are beryllium, magnesium, calcium, strontium, barium and the radioactive radium.
ALKALINE EARTH METALS
Barium Beryllium Calcium Magnesium Radium Strontium
The elements in calcium's group are beryllium, magnesium, strontium, barium, and radium.
There are not just four, there are six. Beryllium Magnesium Calcium Strontium Barium Radium
The maximum density in this list: radium with 5,50 g/cm3.