periodic table

periodic table   Dan periodic table of elements

The periodic table An 18-column by seven-row grid of the elements The chemical elements

The Element Groups The table is organized into groups of similar elements Each element in the table represents a factor that you need to consider to be  1 H · hydrogen 2A 2 The Periodic Table of the Elements ; 3 Li lithium 4 Be beryllium · 11 Na sodium

w69 slot เครดิต ฟรี 188 บาท Try our Interactive Periodic Table of Elements that lets you sort by metals, physical states, group, and period, and view the most important elemental Bohr's table added elements discovered since 1869, but it was still, in essence, the periodic arrangement that Mendeleev had discovered Without