OXYGEN: MATTHEW EMBRY

OXYGEN

• Animal and plants require oxygen for respiration
• Is colorless and tasteless
• Nonmetal
• Supports combustion
• 8 protons in Nucleus

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• Chemical symbol O
• Easily forms compounds called oxides
• Found in air and water we drink
• Makes up 21% air you breathe

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• Suns mass made up of 1% oxygen
• Atomic number 8
• Pharmacist Carl Wilhelmina Scheele
• Everyday needed

CHLORINE :MATTHEW EMBRY

CHLORINE

• Period 3
• Group 17
• Gas
• Atomic number 17
• 1774 founded

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• Group - halogens
• Sociable element
• Named In 1810
• Took 200 years to get recognized
• Used to fight injection and bacteria

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• Used in many everyday products
• Used in textiles,paper,dyes, medicines,foods
• Appearance= greenish-yellow