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Octet rule


The octet rule is a chemical rule of thumb that reflects observation that atoms of main-group elements tend to combine in such a way that each atom has eight electrons in its valence shell ... A sod...

An atom that has single electrons in its outermost shell - Answers


An atom that has single electrons in its outermost shell? An atom that has single ... Atoms with less than 4 electrons in their outermost shell? represent a group of  ...

Electron Shells and the Bohr Model - Boundless


The properties of an element are determined by its outermost electrons, ... Atoms that do not have full outer shells will tend to gain or lose electrons, ... Each element, when electrically neutral, has a number of electrons equal to its atomic number. ... or lose electrons to attain stability; they are highly stable as single atoms.

Chemistry Modules


The number of protons an atom has is called the atom's atomic number, and ... Example of an unstable atom with a single electron in its outer-most shell.

Chemical Bonding


Sodium (Na), for example, has one electron in its valence shell. ... An ion is any atom that has gained electrons to have a negative charge (anion) or .... example, will need to form four covalent bonds in order to fill its outermost shell. ... Hydrogen tends to form covalent bonds because a single covalent bond will fill its shell.

What determines an atom's reactivity? | Reference.com


An atom's reactivity is determined by the number of electrons in its outermost shell. ... metals, which are looking to lose the single electron in their outer shells. ... A: The element palladium has 10 valence electrons in its outermost shell, the 4d ...

Crystal Chemistry - Tulane University


Sep 22, 2014 ... Each chemical element has nearly identical atoms. ... This is because the electrons in the outermost shells would release more energy if ..... up this electron to become H<sup>+1</sup> ion or shares its single electron with another atom in ...

Can an atom have more than 8 valence electrons? - Chemistry


May 18, 2012 ... Covalent bonds happen when each atom contributes one electron to a bond. ... As with the straight-line covalent bond, the line that forms the u-bond represents a single pair of electrons. .... Now, the outermost shell is n . In each ... in which a main group element has more than 8 electrons in its valence shell.

SparkNotes: Atomic Structure: Electron Configuration and Valence ...


The outermost orbital shell of an atom is called its valence shell, and the ... For example, sodium (Na), which has a single electron in its outer 3s orbital, can lose  ...

electron shell | chemistry and physics | Britannica.com


Description of the arrangement of electrons in atoms of various elements. ... The sodium atom has a single electron in its outermost shell, while chlorine needs ...

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The periodic table, electron shells, and orbitals - Khan Academy


In contrast, chlorine has only seven electrons in its outermost shell, while sodium has ... They are unstable as single atoms, but can become stable by losing or ...

Carbon has four electrons in its outermost shell A single - BSCI - 1020


Carbon has four electrons in its outermost shell. A single atom of carbon can participate in a maximum of _____ covalent bonds. ( Some Basic Chemistry ) ...

Elements and Atoms - Kimball's Biology Pages


3) has three electrons, two in the K shell and one located farther from the ... by the number of electrons in its outermost energy level (shell). ... Any atom of the first group will interact with a single atom of any of the ...