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en.wikipedia.org/wiki/Octet_rule

The result is that chlorine will very often form a compound in which it has eight electrons in its outer shell (a complete octet). A sodium atom has a single electron ...

www.chem4kids.com/files/elements/015_shells.html

That box on the left has all of the information you need to know about one element. It tells you the mass of one atom, how many pieces are inside, and where it should be ... In the next section we're going to cover electron orbitals or electron shells. ... share each of their electrons to fill the outer shell of the phosphorus atom.

www.reference.com/science/many-electrons-phosphorus-its-valence-shell-76e5b07a49a2eb11

How many valence electrons are in an atom of phosphorus? ... metals, magnesium has two valence electrons, meaning there are two electrons in its outer shell.

www.easynotecards.com/notecard_set/7153

B) carbon, oxygen, phosphorus, hydrogen ... D) They have the same number of electrons in their valence shell. ... A) The atomic mass does not include the mass of electrons. ... D) It has 8 electrons in its outer electron shell and it is inert. ... How many electrons are needed to complete the valence shell of a fluorine atom?

chem.libretexts.org/Core/Physical_and_Theoretical_Chemistry/Chemical_Bonding/General_Principles_of_Chemical_Bonding/Covalent_Bonds

Aug 11, 2015 ... By sharing their outer most (valence) electrons, atoms can fill up their outer ... other nonmetals depending on how many valence electrons they posses. ... they form covalent bonds, they do not usually share the electrons equally. ... below, Phosphorus has only 5 electrons in its outer shell (bolded in red).

www.ncbi.nlm.nih.gov/books/NBK21595

Covalent bonds, which hold the atoms within an individual molecule together, are ... and an atom's reactivity depends on how many electrons it needs to complete its ... Nitrogen and phosphorus each have five electrons in their outer shells, .... attracts the bonded electrons more than does the hydrogen atom, which has an ...

socratic.org/questions/how-many-valence-electrons-are-in-an-atom-of-phosphorus

Jul 23, 2014 ... All have 5 valence electrons with diverse properties, intermediate between those of metals and nonmetals and the best known member of this ...

www.proprofs.com/flashcards/story.php?title=biology-chapter-2-test-review_1

B) All atoms of a particular element have the same number of protons in their nuclei. .... How many electrons does phosphorus have in its valence shell? ... and the oxygen atoms in order to complete the outer electron shell of all three atoms?

www.shodor.org/unchem/basic/lewis

Oct 6, 2002 ... Lewis structures display the electrons of the outer shells because these ... valence electrons with all octets satisfied, so your structure is complete. ... The atom that originally had the lone pair does not lose its octet ... (Never use multiple bonds with these compounds—you already have too many electrons.).

chemed.chem.purdue.edu/genchem/topicreview/bp/ch10/group5.php

A nitrogen atom can therefore achieve an octet of valence electrons by sharing ... It is difficult to imagine a living system that does not contain nitrogen, which is an ... Animals pick up the nitrogen they need from the plants or other animals in their diet. ..... As a result, phosphorus-phosphorus triple bonds are much weaker than  ...