periodic table

periodic table   Dan periodic table of elements

Features · This periodic table of elements contains 83 real element samples, and some elements are even more expensive than gold · 【High-

Interactive periodic table suitable for A Level chemistry students It includes electronic configurations, melting points and boiling points  The periodic table was developed by grouping elements with similar properties This, together with a later arrangement by atomic weight, led to a repeating

โบนัส 1 รับ 50 The periodic table contains seven periods 5 In each period, the elements' atomic numbers increase from The periodic table contains seven periods 5 In each period, the elements' atomic numbers increase from