The Periodic Table is arranged by rows, also known as periods, and columns, which are also known as groups. Several of his predictions, for scandium (Sc, 21), gallium (Ga, 31), germanium (Ge, 32), technetium (Tc, 43), and protactinium (Pa, 91), accurately described the chemical properties of these undiscovered elements. Elements with similar chemical properties were grouped into families, while Mendeleev boldly left spaces blank for predicted elements yet to be discovered. Mendeleev's table grouped the elements into eight columns, rather than the now-conventional 18 column arrangement, in increasing order of atomic mass instead of atomic number. Previous efforts to order the elements had been attempted, but none had proven to be very successful. The first widely-accepted arrangement of the elements was created by the Russian chemistry professor Dimitri Mendeleev in 1869. Metals tend to be found more towards the left of the table while nonmetals tend to be found on the right, with metalloids in between, following a "staircase" pattern. The periodic table also contains four rectangular blocks with approximately similar properties. These periodic trends may increase, decrease, or stay consistent along a row or column. Other important factors in determining the arrangement of the elements include electron configurations and recurring chemical and physical properties. In the Periodic Table, pure elements are ordered in increasing order of atomic number, which is the number of protons in nucleus. We are not to be held responsible if in any case you harm yourself or others with our product.Įxpertly packed to ensure you get your items safe and sound.įree domestic shipping, International will be calculated at checkout.Periodicity, the repetition of patterns at regular intervals, is the most important property of the Periodic Table. When buying this product you agree that you are an adult who is aware of how to responsibly handle such a set with such materials listed. Some metallic elements may have sharp edges. Depending on each element it is a good idea to always have some type of eye and mouth protection and gloves on to prevent any accidents. Take normal safety precautions when handling each element. Keep out of reach from children! Do not ingest Be careful when handling these elements. This is a high quality yet affordable set for people who enjoy chemistry and science. This set makes is the best periodic table display set available on the market and out shines the cheap acrylic periodic tables of elements in looks and functionality because not only is it a display set but it also doubles as a interactive set where you're able to experiment with the elements with of course the proper personal protective equipment on. This Periodic Table with real elements inside takes quite a vintage look from the brass plaque, solid wood frame and burlap fabric. This chemistry set is a wooden box with a lid made from glass. This set will make a great Christmas gift, gift for teacher, amazing science gift, gift for chemistry professor, neat chemistry teaching tool and a great gift for science hobbies or element collectors. Each sample comes in a 1.8ml glass vial containing high purity Elements as seen in pictures. This set allows you to interact with each element and collect some of your own. Other elements not listed can be added to your collection and put in its own numbered spot. A key card will be included to make finding your wanted element easier. This set includes the following elements: Boron, Carbon, Magnesium, Aluminum, Silicon, Titanium, Vanadium, Sulfur, Chromium, Manganese, Iron, Cobalt, Nickel, Cadmium, Tantalum, Copper, Zinc, Zirconium, Niobium, Molybdenum, Rhodium, Palladium, Silver, Indium, Tin, Tungsten, Rhenium, Ruthenium, Osmium, Platinum, Gold, Lead, Bismuth, Thulium, Beryllium, Hydrogen, Helium, Nitrogen, Oxygen, Neon, Argon, Krypton, Xenon, Scandium and Terbium.Įach sample is labeled by its atomic number. The set is shown in pictures and has a glass top display. What you will receive: You will receive a handcrafted periodic table of elements set. Simply send us a message here to find out how to get your discount today!* *We offer an exclusive deal of 10% off this Chemistry set for Teachers and Professors.
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