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The elements are organised in the periodic table of elements by order of ascending atomic number. They are arranged in groups and periods to demonstrate the gradual trends that are characteristic of certain groups of elements.
Mass number is term used for isotopes, not for elements. And it is boring to list here all the isotopes of the first 20 elements.
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Physical State
The elements were first arranged by the atomic mass of the elements in the first original table. Then it was arranged by atomic number.
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So you can classify the elements into groups.
they can be metal, metalliod or non-metal
A. A shorthand way of representing the chemical elements.
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The elements are organised in the periodic table of elements by order of ascending atomic number. They are arranged in groups and periods to demonstrate the gradual trends that are characteristic of certain groups of elements.
There are 2 most general categories. These are metals and non-metals.
they are classified as first, second, or third-degree, or grade
What was the first classification system and who was the person developed the classification system
Every day, you drink water. (Hydrogen, Oxygen) You eat salt. (Sodium, Chlorine) You breath air. (Oxygen) You eat sugar. (Carbon, Hydrogen, Oxygen) You brush your teeth. (there is baking soda in toothpaste, baking soda is made of Sodium, Hydrogen, Carbon, Oxygen) --PainRain
what are four main soils used to classify soils