How many valence electrons does potassium have?

Answer

Potassium has one valence electron. Valence electrons are the electrons found in an atom's outer energy level.

Potassium has an atomic number of 19, which means one neutral atom of this element has 19 electrons. There will be two electrons in the first energy level, eight in the second level, eight in the third level and one in the final energy level. This last electron is known as a valence electron.

It is possible to determine the number of valence electrons in an element by looking at the periodic table. The number of valence electrons corresponds to an element's group number. The vertical columns on the periodic table are also called groups. Because potassium is in group one, it can be assumed that it has one valence electron.

Q&A Related to "How many valence electrons does potassium have..."
The electrons on the highest numbered sub shells are the valence electrons,
http://www.chacha.com/question/what-are-potassium-...
Just 1 valence electron in K (number 19, period. IV. group. 1. (Its electron configuration is. 4s. 1. in which. 4. :means shell number 4, s. : means s-orbital, 1. : means 1 electron
http://wiki.answers.com/Q/How_many_valence_electro...
heY im in Chemistry too, there is 1. If you wanna know an easy way of finding out, just look at the number on top of the colunms in the periodic table, except foor 1b-8b, those you
http://answers.yahoo.com/question/index?qid=200611...
A potassium atom has one valence electron while sulfur has 4 valence electrons The electrons on the highest numbered subshells are the valence electrons.
http://www.kgbanswers.com/how-many-valence-electro...
Explore this Topic
Each magnesium atom has two valence electrons. Valence electrons obtain their name from their location within an atom. These electrons are located within the outer ...
Scandium, element 21 on the periodic table, has 2 valence electrons. Valence electrons are the electrons that occupy the highest energy orbital of an atom. They ...
Radium has two valence electrons. A valence electron refers to an electron that is linked with an atom, which can take part in the making of a chemical bond. ...
About -  Privacy -  Careers -  Ask Blog -  Mobile -  Help -  Feedback  -  Sitemap  © 2014 Ask.com