Good morning from here, Please how many compounds and symbols are in chemistry? plus how can someone understand the elements in it? Honestly am new to this field and I need directions, Thank you
Answers
Answer:
Each element is represented by its own chemical symbol. The periodic table shows the names and symbols of the elements. A chemical symbol:
consists of one or two letters
always starts with a capital letter, with any other letter in lower case
For example, the element mercury is shown as Hg. You must not show it as HG, hg or hG.
Formulae of elements
A chemical formula represents an element or compound in balanced equations. The formulae for most elements is just their symbol.
Some non-metal elements exist as simple molecules with two atoms joined together. We say that these elements are diatomic. To show this, their formulae contain a subscript number 2. For example:
hydrogen, H2
nitrogen, N2
oxygen, O2
fluorine, F2
bromine, Br2
chlorine, Cl2
iodine, I2
Explanation:
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