We are the original creators of the Heritage Periodic Table, an acrylic periodic table with 83 real elements inside. We are also the original creators of the Heritage Personal Museum, a collection of 33 historical artifacts and rare specimens.
Print-your-own elements cards. Use these however you want. It's fun to simply lay them out to make the whole periodic table. You can use them as flash cards to help you memorize the facts on the front and back of each card. If you want to play it as a game, you can invent you...
Halogen FRs, like their name suggests, are molecules that incorporate elements from group VII of the periodic table—F, Cl, Br, and I. They can vary widely in chemical structure, from aliphatic to aromatic carbon substrates that have been per-halogenated (all hydrogens replaced with halogen at...
Within the table a number of blocks are labeled in terms of the nature of the orbital occupied by the highest energy electron in the atomic ground state of any element in the block. The following blocks are recognized. 1. s-block: highest energy electron (outermost) is s 1 or s 2 . ...
Labeled Periodic Tables Periodic table with electronegativity values Explore the periodic table labeled with Pauling electronegativity values of the elements. Explore now Periodic table with electron configurations Explore the periodic table labeled with electron configurations of all the 118 elements. Explore...
CE5 periodic table, chart of the elements arranged according to the periodic law discovered by Dmitri I. Mendeleev and revised by Henry G. J. Moseley. In the periodic table the elements are arranged in columns and rows according to increasing atomic
Short history of how the Periodic table of chemical elements was arranged, from Lavoisier's Table of simple substances to Seaborg Actinide concept.
The Quest for Superheavy Elements What is the heaviest bound nucleus and the heaviest boundatomand what are their properties? The nuclei of chemical elements with more than 103 protons are labeled as “superheavy.” They are part of a vast unknown territory of these nuclei that scientists a...
Because of the uncoupling of the subgroups, the fourth and fifth periods have 18 elements each. The 10 metals from scandium (Sc) through zinc (Zn) head columns labeled 3 through 12. They constitute the first transition series (though some authors exclude the elements of Group 12 from this ...
However, in the old IUPAC system the letters A and B were designated to the left and right part of the table, while in the CAS system the letters A and B were designated to the main group elements and transition elements respectively. (The preparer of the table arbitrarily could use ...