check out an interesting Periodic Table at www.calculatoredge.com
I think it was Mendaleev's periodic table.
Phosphorus
meercury , lead
Copper
Search: Groups on Periodic Table on google.
J
Francium
Dmitri Mendeleev in 1869
check out this amazing Perodic table at www.calculatoredge.com
The periodic table of elements arranges all of the known chemical elements.
Some common acronyms for the periodic table of elements include COMIC (Carbon, Oxygen, Magnesium, Iodine, Carbon) and HOPKINS Cafe Mug (Hydrogen, Oxygen, Phosphorus, Potassium, Iodine, Nitrogen, Sulfur, Calcium, Iron, Magnesium). These acronyms are helpful for remembering the first few elements in the periodic table.
At last count we were up to 114.