The Properties of the Element Mercury

Symbol - Hg
Name - Mercury
Colour - Silvery White
Atomic Number - 80
Atomic Weight - 200.59
Group Number - 12
Melting Point - 38.87°C
Boiling Point - 356.58°C
Number of Protons/Electrons - 80
Number of Neutrons - 121
Classification - Transition Metal
Crystal Structure - Rhombohedral
Density at 293K - 13.456g/cm3
Standard State - Liquid at 298K (the heaviest known element liquid)
Pronounced - MER-Kyoo-ri

Mercury Toxicity

The earliest symptoms of mercury poisoning are tremors of the hand, tongue, and eyelids, usually progressing to difficulty with balancing and walking.

Other symptoms of Mercury toxicity include the following:

Depression
Arthritis
Dermatitis
Dizziness
Fatigue
Gum disease
Hair loss
Excessive saliva
Memory loss
Muscle weakness
Insomnia
Visual impairment
Hearing impairment
Speech impairment

High Levels can also cause:

Brain Damage
Blindness
Paralysis

The Four Big Pollution Diseases of Japan are manmade diseases all caused by environmental pollution due to improper handling of industrial waste by Japanese corporations.

Name of disease

Cause

Blame

Year

Minamata disease

mercury poisoning

Chisso chemical factory

1932 - 1968

Niigata Minamata disease

mercury poisoning

Shõwa Electrical Works

1965

Yokkaichi Asthma

sulphur dioxide and nitrogen dioxide

air pollution in Yokkaichi

1961

Itai-itai disease

cadmium poisoning

Mining in Toyama Prefecture

1912

 

Atomic Structure (click here)

First Energy Level - 2
Second Energy Level - 8
Third Energy Level - 18
Fourth Energy Level - 32
Fifth Energy Level - 18
Sixth Energy Level - 2

 

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