Studying chemistry, and then come up to the mark? Why has Alabama ever know the periodic table, it has a long history, beginning with the aboe 1828-1965 won-Kang de yahan how banner had proposed to group them as element 3 group called Tri-element or a set of three by the aet truak amino-2 ' has a mass of Martin lang element remaining, and in 1864 by John Newlands told him that?Sorted by atomic mass, ascending horizontally. The properties of the element will have similar characteristics as the range of elements to occur every 8 but it does not use this rule because it cannot explain why the atomic mass. In the year 1269 Julius Meyer He thought that if the sort element as atomic mass, ascending to have similar properties as the range.The element must have a similar treasure, in the same orientation, or space them seems to be the position of the element, which has not yet discovered in 1821. 1886 the Maine Adelaide f.Predict which elements and spaces in 1902 Marín has already issued rules attempting to describes how the element at Tequila with bonding atoms, the electrons are there around the outer has no more than eight characters, and we don't come up to the mark with this arrangement. it has come to see what features.
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