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Elements which have d-orbitals (i. e. n=3 or higher) can form compounds with an expanded octet. Some examples are;
- Phosphorous Pentachloride PCl5
- Sulfur Hexafluoride SF6
- Dichloro Heptoxide Cl2O7
Wiki User
∙ 11y ago
Wiki User
∙ 9y agoAn octet of electrons means the last shell of the atom has 8 electrons. The last column in the Periodic Table (also called noble gases) has all the elements that contain an octet of electrons such as Helium, Neon, and Argon, to name a few.
Wiki User
∙ 15y agoI think it is the Noble gases or the inert gases (they have full shells). Check it up on Google and you will get a full explanation :)
Wiki User
∙ 10y agoThe noble gases have a complete octet. If you go across the groups (1a to 8a), left to right. They have 1 to 8 of the octet in order. This gives them remarkable stability.
Wiki User
∙ 14y agoNoble gases
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What is a element that will not form a compound?
Group 0 Elements ( Helium, Neon, Argon...) do not form compounds because they have a complete Octet and are thus unreactive and exist as mono atomic elements
How does sodium obey the octet rule when reacting to form compounds?
Yes
Net charge of iron?
It depends on the atoms. If an atom is trying to gain an electron to form an octet then the charge will be negative. If the atom is trying to lose an electron to form an octet then the charge will be positive. Ferrous ion is Fe2+ and ferric ion is Fe3+.
What do elements combine to form?
Elements combine to form chemical compounds.
Why does sodium form a 1 plus ion and magnesium 2 plus ion?
This is due to the difference between the two elements regarding their valence electrons as neutral elements. Sodium has a single electron in its valence shell, which it gives up to have a stable octet; by giving up one electron, sodium acquires a 1+ charge. Magnesium has two electrons in its valence shell that it will give up to have a stable octet; by giving up two electrons, magnesium acquires a 2+ charge.
Does uranium have an octet?
All the elements have a tendency to form an octet.
Why do most of the elements on a periodic table like to form bonds with other elements?
To complete their octet
What Atoms of which elements form bonds without satisfying the octet rule?
\helium (He) and hydrogen (H)
Which elements can combine with boron to form octect?
Boron cannot make simple compounds with a filled octet. Though it forms complex ions such as BF4- , BCl4- where it completes the octet.
How many electrons must neon loose to form a anion?
Do note that elements form anions to gain stability (duplet and octet rules). Neon is a noble gas. It is inert, as its valence shell is full (and follows the octet rule). It does not need to form an anion, as it is already stable.
Why are element in the periodic table bond?
Elements bond to form compounds and thereby try to gain better stability by getting octet configuration.
When do the triple bonds form?
Triple bond forming is mostly observed in group 15 elements in order to fill there octet in their valence shell.
What rule is it when representative elements form bonds until they have eight electrons in their valance shells?
The octet rule also known as the rule of eight
What are the limitations of octet rule?
1. the incomplete octet of a central atom 2. odd electron molecule 3. compound with expanded octet 4. acc. to rule atoms complete their octet to complete their octet to become stable like inert gas, but it is seen that inert gases like xenon are not stabkle they combine with fluorine and oxygen to form no. of compounds. 5. shape of molecule cant be explained 6. stability of molecule cant be explained
How is interaction of atoms and their electrons different in a covalent bond than an ionic bond?
In a covalent bond the electrons are shared between the elements to form an octet. However, in an ionic bond the metal gives up its electron in order to have a perfect octet and the nonmetal takes the electron in order to have a perfect octet.
What is a element that will not form a compound?
Group 0 Elements ( Helium, Neon, Argon...) do not form compounds because they have a complete Octet and are thus unreactive and exist as mono atomic elements
Which a property shared by all of the elements in group 18 on the periodic table?
They have an octet of outer electrons, so they are stable. They do not tend to form any compounds.
