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ଛାଞ୍ଚ:Periodic table (alkaline earth metals)

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Alkaline earth metals

alkali metals ← → group 3

IUPAC group number	2
Name by element	beryllium group
Trivial name	alkaline earth metals
CAS group number (US)	IIA
old IUPAC number (European)	IIA

↓ Period

2

Image: Lump of beryllium

Beryllium (Be)
4

3

Image: Magnesium crystals

Magnesium (Mg)
12

4

Image: Calcium stored under argon atmosphere

Calcium (Ca)
20

5

Image: Strontium floating in paraffin oil

Strontium (Sr)
38

6

Image: Barium stored under argon atmosphere

Barium (Ba)
56

7

Image: Radium electroplated on copper foil and covered with polyurethane to prevent reaction with air

Radium (Ra)
88

Legend

primordial element

element by radioactive decay

Atomic number color:
black=solid

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