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Science
Chemistry
Chemical elements
s-Block
Group 2
Group 2
Alkaline earth metal
Group of chemical elements
Barium
Chemical element with atomic number 56
Beryllium
Chemical element with atomic number 4
Calcium
Chemical element with atomic number 20 (Ca)
Fancy Bear
Cyber espionage group
Isotopes of beryllium
Magnesium
Chemical element with atomic number 12 (Mg)
Radium
Chemical element with atomic number 88