What is the name of the Group 1 elements in the periodic table? What is the periodic table and how is the periodic table arranged? What special property of the noble gases makes them unreactive? Using the periodic table, which of the following elements has the most properties in common wit...
What are the chemical elements of metal alloy? Which of the alkaline earth metals is the largest? What kind of ion is formed by metals and transition metals? What is silver on the periodic table? What are noble gases used for? How do halogens and alkali metals differ in reactivities?
For the noble gases, this is of course a direct reflection of the principle that translational quantum states are more closely packed in heavier molecules, allowing of them to be occupied. The entropies of the diatomic and polyatomic molecules show the additional effects of rotational quantum ...
In unconfined gaseous matter, particles are spread out indefinitely since they have a lot of space between them. This space is also why atoms in gases have large vibrations, and particles have high kinetic energy. Gases can also be confined, in which case they adjust to the volume and shape...
the heated material from chemical reactions with the ambient air. The noble gases argon, helium or mixtures thereof are used for this purpose. The inert, i.e. non-reactive, gases prevent chemical reactions with the liquid weld pool and the heated material. This ensures high-quality weld seams...
The interstellar medium – the space between stars — is primarily made up of gases. Hydrogen is the most abundant, but helium comes in second place, and it plays a special role in the chemical world. Helium is a noble gas, part of a group of elements that do not naturally form bonds...
Metal oxides may also be named using the-asuffix. Al2O3, Cr2O3, and MgO are, respectively, alumina, chromia, and magnesia. Special names are applied to oxides based on comparing lower and higher oxygen oxidation states. Under this naming, O22-is peroxide, while O2-is superoxide. For ...
and take curative baths. For example, such is the case with Epsom. Salts that have a loose enough crystalline structure to incorporate water molecules and become hydrated salts may absorb the water molecules from the water vapor in the air, or become hydrated when in contact with liquid water...
A special mix of gases is pumped in, and heat causes the carbon to separate and stick to the seed diamond. Layer by layer, a new diamond accumulates. Some CVD stones can reach a carat in about a month. It’s slower than HPHT, but requires far less energy. Are Lab-Grown Diamonds ...
What is nonmetal in chemistry? Nonmetals: When looking at the Periodic Table of the Elements, there are groupings of elements based on physical and chemical characteristics. The main major groups are metals, metalloids, and nonmetals (sometimes the inert/noble gases are split off as another maj...