Wednesday 31 October 2007

SILVER


The silver is a chemical element of atomic number 47 placed in the group 1b of the periodic table of the elements. His symbol is Ag. It is a metal of transition white, brilliant, soft, malleable and it is the best metallic driver of the heat and the electricity.
It is in the nature forming part of different minerals (usually in form of sulphide) or as free silver. It is very scanty in the nature of that represents one part in 10 millions of terrestrial bark. The most part of your production it is obtained as by-product of the treatment of the mines of cooper, zinc, plumb and gold. The metallurgy from his it minerals it is relized fundamentally by the cianuration.

1 comment:

Mar F. Blas said...

Definite Article: the

The definite article is used before singular and plural nouns when the noun is specific or particular. The signals that the noun is definite, that it refers to a particular member of a group. For example:

"The dog that bit me ran away." Here, we're talking about a specific dog, the dog that bit me.

"I was happy to see the policeman who saved my cat!" Here, we're talking about a particular policeman. Even if we don't know the policeman's name, it's still a particular policeman because it is the one who saved the cat.

"I saw the elephant at the zoo." Here, we're talking about a specific noun. Probably there is only one elephant at the zoo.
Count and Noncount Nouns

The can be used with noncount nouns, or the article can be omitted entirely.

* "I love to sail over the water" (some specific body of water) or "I love to sail over water" (any water).
* "He spilled the milk all over the floor" (some specific milk, perhaps the milk you bought earlier that day) or "He spilled milk all over the floor" (any milk).

In this case, we´re talking about silver in general, so you should drop the article.
Grammar reference