Radium is the least reactive among calcium, magnesium, strontium, and barium. Radium is a highly radioactive metal that readily reacts with other elements, but it is less reactive compared to the other listed elements.
Calcium has similar physical and chemical properties to magnesium and strontium. They all belong to the same group of the periodic table, which means they have similar reactivity and characteristics.
Element family number 2, known as the alkaline earth metals, includes the elements beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra). These elements share similar chemical properties, such as forming 2+ cations and being reactive.
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.
Beryllium (Be) apexvs
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.
Radium is the least reactive among calcium, magnesium, strontium, and barium. Radium is a highly radioactive metal that readily reacts with other elements, but it is less reactive compared to the other listed elements.
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
Beryllium, Magnesium, Calcium, Strontium, Barium, and Radium all have an oxidation state of plus 2.