The periodic table stares down from the walls of just about every chemistry lab. The credit for its creation generally goes to Dimitri Mendeleev, a Russian chemist who in 1869 wrote out the known ...

Each of the 18 columns in the table is called a group or a family. Elements in the same group share similar properties. And the properties can be assumed based on the location within the group.

When IUPAC proposed modifying the periodic table’s column numbering in 1985, it took about five years to decide and another 10 to 15 years for chemists to adopt the changes, Reedijk says.

The periodic table of chemical elements, often called the periodic table, organizes all discovered chemical elements in rows (called periods) and columns (called groups) according to increasing atomic ...

When it comes to central repositories of awesomeness, science has its Periodic Table of Elements. Baseball has its Hall of Fame. And now, an unlikely marriage between the two has been fashioned ...

The table wasn't perfect (Mendeleev was unable to locate hydrogen using his system, for example), but it laid a solid groundwork for generations of chemists to build upon over the next 150 years.

The periodic table stares down from the walls of just about every chemistry lab. The credit for its creation generally goes to Dimitri Mendeleev, a Russian chemist who in 1869 wrote out the known ...

This part of the periodic table was the playground of Glenn Seaborg, an American physicist. In 1940 Seaborg was part of a group at the University of California, Berkeley, that made neptunium (93).

That shortcoming, I am ashamed to say, still catches me out: in 2019, I wrote a column in praise of the periodic table’s 150-year anniversary, only to mix up atomic number with mass number.

Discovery of 'periodic tables' for molecules Date: September 9, 2019 Source: Tokyo Institute of Technology Summary: Scientists have develop tables similar to the periodic table of elements but for ...