In the modern periodic table, elements are arranged in order of atomic number in periods and groups. Electronic arrangements model how electrons are arranged. Part of Combined Science Chemical ...

In celebration of the International Year of the Periodic Table (IYPT 2019), the Royal Society of Chemistry is organising a series of talks at science centres, universities and other venues across the ...

GCSE AQA Trilogy The periodic table - AQA The modern periodic table Mendeleev made an early periodic table. In the modern periodic table, elements are in order of atomic number in periods and groups.

Scientists at the Japan Atomic Energy Agency have studied lawrencium for first time. The radioactive element is extremely difficult to make and has a half-life of just 27 seconds.

The seventh row of the table was completed in 2016 when Tennessine, Nihonium, Moscovium, and Oganesson were added. Elements can be named after places, minerals, mythological figures, or people.

The elements that fall on each of the wheel's spokes share common properties just as those in a column (group) do so in today's table. There was also Henry Basset's rather odd 'dumb-bell ...

The periodic table as we know it is widely credited to Dmitri Mendeleev, a Russian chemist who kept reference cards on the elements and their atomic weight. In 1869, he noticed that the elements ...