Periodic Table - Ptable
Interactive periodic table showing names, electrons, and oxidation states. Visualize trends, 3D orbitals, isotopes, and mix compounds. Fully descriptive writeups.
Periodic Table of the Elements - pH
pH is defined as the negative logarithm of hydrogen ion concentration. The pH scale was introduced S.P.L. Sorenson. pH scale is used to express the acidity of only dilute solutions. The strength of an acid or base is measured on a scale called the pH scale, which goes from 0 to 14 in general usage. A liquid with a pH of 7 is neutral.
Periodic Table of Elements - PubChem
Interactive periodic table with up-to-date element property data collected from authoritative sources. Look up chemical element names, symbols, atomic masses and other properties, visualize trends, or even test your elements knowledge by playing a periodic table game!
Phosphorus - Element information, properties and uses ...
Phosphorus is a non-metal that sits just below nitrogen in group 15 of the periodic table. This element exists in several forms, of which white and red are the best known.
Phosphorus - Wikipedia
Phosphorus is a chemical element; it has symbol P and atomic number 15. Elemental phosphorus exists in two major forms, white phosphorus and red phosphorus, but because it is highly reactive, phosphorus is never found as a free element on Earth.
Periodic Table of the Elements - pH
information about pH values of some common substances. Substance pH Type ; Hydrochloric Acid (HCl) 0.0: Acid: Battery Acid (H2SO4 sulfuric acid)
The pH Scale of Common Chemicals - Science Notes and Projects
2020年9月30日 · Chemicals with pH values from 0 up to 7 are acids, those with a pH value of 7 are neutral, and those with pH values greater than 7 up to 14 are bases. Here is a table of pH values of common chemicals.