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!
The PubChem Periodic Table and Element pages help users navigate the abundant chemical element data available within PubChem while providing a convenient entry point to explore additional information, such as bioactivities and health and safety data, available in PubChem Compound pages for specific elements and their isotopes.
Explore how ionization energy changes with atomic number in the periodic table of elements via interactive plots.
Explore how boiling point changes with atomic number in the periodic table of elements via interactive plots.
Explore how atomic radius changes with atomic number in the periodic table of elements via interactive plots.
Determining whether a death is murder or natural often comes down to forensics. In New York City, a medical examiner and his assistant redefined how to do it. Author Deborah Blum, a Pulitzer Prize ...
Experience Murder online right from your browser with Poki and test your observation and reaction skills. You can play Murder for free, but a wrong move will cost you your life.
Most societies consider murder to be an extremely serious crime, and thus believe that a person convicted of murder should receive harsh punishments for the purposes of retribution, deterrence, rehabilitation, or incapacitation.
Not every killing is a crime. Learn how intent, circumstances, and legal definitions separate murder from manslaughter and lawful homicide. Homicide is any killing of one person by another, and by itself the word says nothing about whether a crime occurred.