5 ELEMENTS

BARIUM

• Symbol: Ba
• Atomic Number: 56
• Fifth element in the second group
• It a softy silvery metallic alkaline earth metal
• Exists naturally but also can occurs with others
• Found combined with sulfur, carbon, oxygen
• Discovered in 1808
• Its a very light weight but half of iron's density
• Melting point at 1,341 F*
• Boiling point at 3,447 F*
• Density 3.62
• 20 C* its state's a solid
• Rapidly tarnishes in air and reacts with water
• Not an extensively used element
• Produced from China, India, and Usa

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• Its a metal.
• Releases flammable gas when contacted with water.
• Doesn't do any harm to your body and flows through your digestive system.
• White solid at room temperature.
• Used as a getter; a meterial that combines with and removes trace gases from vacuum tubes.
• Barium swallow may make you feel sick.
• Barium sulfate works by coating the inside of your stomach or intestines.
• Allows them to be clearly seen on a CT scan or any other types of x-rays.

Calcium

• Atomic number: 20
• Symbol: Ca
• Weight: 40.078
• Calcium builds up your bones
• You can receive calcium in milk, yoghurt, cheese, and any dairy.
• Calcium is the 5th most abundant component of Earth's crust, forming about 3%.