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Periodic Videos (also known as The Periodic Table of Videos) is a video project and YouTube channel on chemistry. It consists of a series of videos about chemical elements and the periodic table , with additional videos on other topics in chemistry and related fields.
Sir Martyn Poliakoff (born 16 December 1947) [3] is a British chemist known for his work on green chemistry and for being the main presenter on the popular YouTube channel Periodic Videos. [6] The core subjects of his academic work are supercritical fluids , [ 7 ] [ 8 ] infrared spectroscopy and lasers .
Periodic table of the chemical elements showing the most or more commonly named sets of elements (in periodic tables), and a traditional dividing line between metals and nonmetals. The f-block actually fits between groups 2 and 3 ; it is usually shown at the foot of the table to save horizontal space.
University Park Campus, to the west of Nottingham city centre, is the 330-acre (1.3 km 2) main campus of the University of Nottingham. Set around its lake and clock-tower and with extensive parkland greenery, [ 20 ] [ 21 ] University Park has won numerous awards for its architecture and landscaping, and has been named the greenest campus in the ...
A period on the periodic table is a row of chemical elements. All elements in a row have the same number of electron shells. Each next element in a period has one more proton and is less metallic than its predecessor. Arranged this way, elements in the same group (column) have similar chemical and physical properties, reflecting the periodic law.
A period 3 element is one of the chemical elements in the third row (or period) of the periodic table of the chemical elements.The periodic table is laid out in rows to illustrate recurring (periodic) trends in the chemical behavior of the elements as their atomic number increases: a new row is begun when chemical behavior begins to repeat, meaning that elements with similar behavior fall into ...
Lithium through Neon (see periodic table) have two shells: two electrons in the first shell, and up to 8 in the second shell. Larger atoms have more shells. Larger atoms have more shells. The principal quantum number is one of four quantum numbers assigned to each electron in an atom to describe the quantum state of the electron.
It forms amalgams with mercury and alloys with gold, iron, caesium, sodium, and potassium, but not lithium (despite rubidium and lithium being in the same periodic group). [13] Rubidium and potassium show a very similar purple color in the flame test , and distinguishing the two elements requires more sophisticated analysis, such as spectroscopy.