What is octet rule answer?
What is the Octet Rule? The octet rule dictates that atoms are most stable when their valence shells are filled with eight electrons.
Octet Rule. States that atoms must attain 8 electrons in outermost energy level to become stable. Subatomic Particles. Particles SMALLER than an atom.
octet, in chemistry, the eight-electron arrangement in the outer electron shell of the noble-gas atoms.
Example: sodium chloride (NaCl)
Adding a second electron to form a hypothetical Cl2- would require energy, energy that cannot be recovered by the formation of a chemical bond. The result is that chlorine will very often form a compound in which it has eight electrons in its outer shell (a complete octet), as in Cl−.
The octet rule exists because the atoms of many elements become more stable by attaining a noble gas electron configuration. Most noble gases have eight valence electrons (He has only 2) which gives them a full outer shell of electrons in the s and p sublevels of their highest energy level.
The octet rule states that the atoms like to have eight electrons only in their full outer shells. For achieving eight electrons in their outer shells, atoms would gain or lose the valence electrons. Furthermore, the atom does this by bonding with each other.
Connect each atom to the central atom with a single bond (one electron pair). Subtract the number of bonding electrons from the total. Distribute the remaining electrons as lone pairs on the terminal atoms (except hydrogen), completing an octet around each atom. Place all remaining electrons on the central atom.
Just as we humans group letters of the alphabet together to form words, computers form “words” by grouping eight bits together to form a “byte”. When referring to IP addresses, each byte is called an “octet” as it is comprised of eight independent values.
Overview of Octet Rule
The octet rule was postulated by Kossel and Lewis. According to this rule, elements tend to complete eight electrons in their valence shells through bonding. Except for noble gases, other atoms of the elements cannot have an independent existence.
The octet rule states that an atom tends to have eight electrons in its outermost valence shell by forming covalent bonds through gaining or losing electrons from its outermost shell. Elements that obey octet rules are the main group elements which are oxygen, carbon, nitrogen.
What is octet rule elements?
The octet rule is that an atom will be most stable when surrounded by 8 electrons in the valence shell. An atom that does not have eight electrons will bond with other atoms to have eight electrons. A configuration that has eight electrons is also referred to as the 'noble-gas configuration'.
The octet rule is applicable only for atoms in their ground state. It does not take account into the number of electrons in an atom. It failed to explain the relative stability of molecules. The shape of the molecule is not predicted by the octet rule.
Octet rule was given by Lewis and Kossel. It states that atoms tend to form compounds in ways that give them eight valence electrons and thus the electron configuration of a noble gas. An exception to an octet of electrons is in the case of the first noble gas, helium, which only has two valence electrons.
Octet rule - Matter always wants to be in the most stable form. For any atom, stability is achieved by following the octet rule, which is to say all atoms (with a few exceptions) want 8 electrons in their outermost electron shell (just like noble gases).
• In the formation of a chemical bond, atoms lose, gain or share valence electrons to complete their outer shell and attain a noble gas configuration. • This tendency of atoms to have eight electrons in their outer shell is known as the octet rule.
What are the 3 exceptions to the octet rule? The octet rule is subject to three basic exceptions: Molecules containing an odd number of electrons, such as NO; SF₆ molecules in which one or more atoms have more than eight electrons; and. Molecules contain more atoms with less than eight electrons, like BCl₃.
However, there are three general exceptions to the octet rule: Molecules, such as NO, with an odd number of electrons; Molecules in which one or more atoms possess more than eight electrons, such as SF6; and. Molecules such as BCl3, in which one or more atoms possess less than eight electrons.
The Octet Rule is violated in these three scenarios: When there are an odd number of valence electrons. When there are too few valence electrons. When there are too many valence electrons.
The Octet Rule states that main-group elements will generally form enough bonds to obtain 8 electrons in their valence shell.
The octet rule is that an atom will be most stable when surrounded by 8 electrons in the valence shell. An atom that does not have eight electrons will bond with other atoms to have eight electrons. A configuration that has eight electrons is also referred to as the 'noble-gas configuration'.
Which of the statements about the octet rule is true?
Which of the statements about the octet rule is true? The octet rule states that atoms tend to try to achieve the same electron configuration as the closest noble gas.
You are probably thinking about the term octet that is often used to be synonymous with a single-byte (non-unicode) character. Octet in this instance means eight bits. A character can be eight or sixteen or even more bits, but an octet is always eight bits.
Each of the four octets are separated by a dot, and represented in decimal format, this is known as dotted decimal notation. Each bit in an octet has a binary weight (128, 64, 32, 16, 8, 4, 2, 1).
Word forms: octets
An octet is a group of eight singers or musicians. ... the Stan Tracey Octet.
In general, atoms are most stable, least reactive, when their outermost electron shell is full. Most of the elements important in biology need eight electrons in their outermost shell in order to be stable, and this rule of thumb is known as the octet rule.
However, there are three general exceptions to the octet rule: Molecules, such as NO, with an odd number of electrons; Molecules in which one or more atoms possess more than eight electrons, such as SF6; and. Molecules such as BCl3, in which one or more atoms possess less than eight electrons.