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The families that contain a full octet of valence electrons are the noble gases, which include helium, neon, argon, krypton, xenon, and radon. These elements have eight valence electrons (except helium, which has two) and are characterized by their lack of reactivity due to their stable electron configuration. In addition, some heavier elements in groups like the transition metals can also achieve a full octet in certain compounds, but the noble gases are the most notable for having a complete octet in their elemental forms.
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How many electrons does barium lose to become a stable octect?
Two electrons.
Do noble gases have a full octet of electrons?
If by octect you mean the outermost shell, then yes.. that's why they're noble gasses (inert)
Why is the octect rule important?
The "octect" rule is mainly about the amount of levels within each electron shell in an atom. For example, the first can contain up to 2, and the second up to 8.
What is the difference between atomic numbers and charges?
The Atomic Number of an Element displays how many Protons it has in its nucleus, and so elements with higher atomic numbers tend to be heavier than those with less. Charge is how many electrons need to be removed or added in order to form a perfect octect of 8. For Example, Calcium has an atomic number of 20-this means it has 20 Protons, and, naturally, 20 Electrons. Simply by its position in the periodic table being row 2, it can be determined that Calcium must lose 2 electrons in order to look like Argon-which is an element that has Atomic Number 18(and thus 18 electrons. Argon has a perfect octect in its outer shell).
Why carbon is tetrahedral?
The carbon atom is called tetravalent because it forms 4 covalent bonds. A carbon atom has a total of six electrons occupying the first two shells, i.e., the K-shell has two electrons and the L-shell has four electrons. This distribution indicates that in the outermost shell there are one completely filled 's' orbital and two half-filled 'p' orbitals, showing carbon to be a divalent atom. But in actuality, carbon displays tetravalency in the combined state. Therefore, a carbon atom has four valence electrons. It could gain four electrons to form C4- anion or lose four electrons to form C4+ cation. Both these conditions would take carbon far away from achieving stability by the octect rule. To overcome this problem carbon undergoes bonding by sharing its valence electrons. This allows it to be covalently bonded to one, two, three or four carbon atoms or atoms of other elements or groups of atoms.
How many electrons does barium lose to become a stable octect?
Two electrons.
What does the outer shell of electrons of an atom tell you?
The outer shell of electrons of an atom determines its chemical properties and reactivity. The number of electrons in the outer shell also determines the atom's ability to form bonds with other atoms.
Why most compound of carbon are covalent?
Carbon has four valence electrons in its outermost orbit which indicate it need four further electrons to complete its valence according to octect rule. It is also not possible for Carbon to remove all of its four valence electrons for the same cause of obeying octect rule. Hence the only option left for carbon is make covalent bonds with another carbon or any other element whose electrons are available for making a covalent bond. That's why most of the compounds of carbon are covalent.
Is an atom with a complete octec chemmically stable?
Typically an atom with a complete octect on its valence shell is chemically stable. There are exceptions to this rule, as with any other. The nonmetals below the row of Carbon, Nitrogen, Oxygen and Fluorine typically accept more. The rule of thumb is that a stable atom is one that has eight electrons on its valence (or outermost) shell.
What is octet-rule violation?
It what happens when elements don't obey the octect rule, i.e. elements that have more than eight electrons in their outermost shell. It what happens when elements don't obey the octect rule, i.e. elements that have more than eight electrons in their outermost shell.
Why do carbon always forms covalent bond?
Carbon has four valence electrons in its outermost orbit which indicate it need four further electrons to complete its valence according to octect rule. It is also not possible for Carbon to remove all of its four valence electrons for the same cause of obeying octect rule. Hence the only option left for carbon is make covalent bonds with another carbon or any other element whose electrons are available for making a covalent bond. That's why most of the compounds of carbon are covalent.
Why it is said that outermost shell should contain 8 electrons?
According to the Octect Rule, an atom is most stable when its outermost shell has 8 electrons. So atoms try to attain 8 electrons in their outer shell.
Can one hydrogen atom bond with one carbon?
Yes, but more is needed. According to the octect rule, atoms want to fill their outer most valence shell with the maximum amount of electrons. When this is applied to carbon, carbon wants to have 8 electrons in its outer most valence shell. As a neutral atoms, carbon has 4 electrons in its outer most valence shell. Hydrogen has only one electron, so it only has one elctron to give. This means carbon attacthed to one hydrogen atom has 5 electrons in its outer most valence shell. Carbon will still want to bond to more atoms in order to have 8 electrons in its more outer valence shell.
What is an exception to the octet rule?
Yes. Hydrogen follows the duet rule, and boron and a few other elements are exceptions. Also, the noble gases can have expanded valence levels with more than eight electrons, though they only bond under certain conditions.
Do noble gases have a full octet of electrons?
If by octect you mean the outermost shell, then yes.. that's why they're noble gasses (inert)
Why is the longest octect in an internet address 255?
11111111=255
What is octet in networking?
An octect is a byte with exactly 8 bits.
