- Organizing Atoms And Electrons The Periodic Table 1 It Is An Extraordinary Achievement That Nearly Naturally Occurrin 1 (41.28 KiB) Viewed 18 times
Organizing Atoms and Electrons - The Periodic Table 1. It is an extraordinary achievement that nearly naturally occurring or synthesized, have been identified so far. 2. Both music and chemistry rely upon elements, either to form and universal languages. 3. By 1869, a total of naturally occurring elements had been discovered, just by exploring the environment. 4, is often considered the father of the periodic table. 5. There is a reason why his table is called a periodic table, and not just a chart of the elements. "Periodic" refers to or 6. Starting with potassium, which has the largest atoms in its period, atoms as you move across a period. generally get 7. The last group, the Noble gases contains generally elements, including krypton and xenon, 8. Moseley arranged his periodic table according to A few years later it was confirmed that this atomic number was based on the number of in each element. 9. is the tendency of an element to undergo chemical reaction, either by itself or with other materials, such as the air around us. 10. The we go in the Alkali Metal group the more reactive the metal is. 11.Elements in group one, the alkali metals, have similar chemical properties because they have similar 12. When an atom comes into contact with another chemical species, it is only the "outermost" shell-also known as the shell-that will be available to interact 13. All the alkali metals-lithium, sodium, potassium, and so on, have only electron in their valence shell, 14.A very important observed principle is that atoms tend to gain or to lose electrons in their electrons in a way that leaves them with valence shell. 15. Elements in the same column or group of the table generally will have the same number of electrons in their valence shell, and will have similar because of this. 16. The elements in the second group react in a similar fashion to those in the first group. But they aren't as 17.One of the biggest advances in periodic tables was made in 1945 by Glenn T in his 18.Seaborg, like Mendeleev, left some layout of the periodic table.