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4.1 Elements and Symbols
All the substances in our world are made up of 88 elements.
Elements can't be broken down into simpler substances.
The elements have been named for planets, mythological figures, colors, minerals, geographic locations, and famous people over the centuries.
A complete list of elements and their symbols can be found on the inside front cover of the text.
The first letter of an element's symbol is capitalized.
We know when a different element is indicated with Silicon.
The symbols of two elements are disliked by Neon.
The element Co has a symbol.
There are two elements in the capital letters CO, carbon and oxygen.
The ancient Latin or Greek words that the symbols are derived from are given in parentheses.
Most of the symbols use letters from the current names, but some are derived from ancient names.
Learning their names and symbols will help you learn chemistry.
Write the chemical symbols for the elements.
Practice Problems 4.1 to 4.6 Mercury (Hg) is a silvery, shiny element that is a liquid in a room.
Mercury can enter the body through inhaled mercury vapor, of mercury poisoning occurred contact with the skin, or ingestion of foods or water contaminated with in Minamata and Niigata, mercury.
In 1965, mercury disrupted cell func Japan.
Long-term exposure to mercury can damage the brain and kidneys, the ocean was polluted with cause mental retardation, and decrease physical development.
Mercury can be found in blood, urine, and hair samples.
Toxic mercury is converted into a major food in the diet in both freshwater and seawater.
We are exposed to mercury by consuming mercury-contaminated fish.
The Food and Drug Administration set ral damage when mercury levels in fish became a concern.
In the United States, the maximum level of mercury in every kilogram of sea between 1988 and 1997 is a silvery one.
When the use of mercury was banned, fish higher in the food chain, such as swordfish and shark, lost 75% of their mercury content.
The EPA advises against consuming certain batteries and compact fluorescent light bulbs more than once a week.
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