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Which elements can never have 8 valence electrons even when it forms bonds?
Wiki User
∙ 14y ago
If you wanted to be entirely pedantic about it, all elements have this possibility if you ignore absurd energy boundries. In reality, we can see that elements such as Hydrogen, Helium, Lithium will never fill an octet since they are so small. Lithium, for example, has 3 electrons. it would have to gain 5 electrons in order to complete an octet. That's unlikely enough without considering the fact that almost every element on the table is more electronegative than Lithium and so will steal it's electron density during bonding.
Wiki User
∙ 14y ago
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What does a valence number of 1 plus mean?
Valence number is the number of chemical bonds that an element can form- these bonds may be covalent (sharing of electrons) or ionic (transfer of electrons). A valence number of 1 means that the element forms just one bond, for example sodium -- forms NaCl - with an ionic bond; hydrogen forms HCl - with a covalent bond.
What part of an atom forms a chemical bond?
The electrons (especially the valence electrons)
When an atom has four valence electrons how many bonds will it form with other atoms?
The carbon atom can form up to four covalent bonds.
Why carbon atoms cannot form ionic bonds in its compounds?
carbon atoms cannot form ionic bonds because it can neither gain or loose electrons as it has 4 electrons in its valence shell.so it share its electrons which forms covalent bond.
How do the properties between ionic and covalent bonds vary?
Ionic bond means a bond forms between atoms by complete transfer of electrons from valence shell of metal to the incomple valence shell of non metal.covalent bonds between two atoms formed by mutual sharing of electrons by them.
Which group of elements forms bonds by using their six valence electrons?
The group 16 elements have 6 valence electrons. However, they generally only have two unpaired electrons available for bonding.
What is the importance of the electrons?
The valence electrons of an atom determine how the element forms chemical bonds with other elements to form chemical compounds.
Which group of elements forms bonds by using their six valance electrons?
Group 16 because on the periodic table, there are different columns that represent a greater or lesser amount of valence electrons; and group 16 has the amount of 6 valence electrons.
Why does carbon bond with so many different elements?
Carbon can bond with itself, and many other elements.
What does a valence number of 1 plus mean?
Valence number is the number of chemical bonds that an element can form- these bonds may be covalent (sharing of electrons) or ionic (transfer of electrons). A valence number of 1 means that the element forms just one bond, for example sodium -- forms NaCl - with an ionic bond; hydrogen forms HCl - with a covalent bond.
What part of an atom forms a chemical bond?
The electrons (especially the valence electrons)
When an atom has four valence electrons how many bonds will it form with other atoms?
The carbon atom can form up to four covalent bonds.
Does the boron family give or take valence electrons?
The elements below Boron in group 13 generally give electrons to form ions, although they can form covalent compounds. Boron forms covalent bonds rather than ionic so it shares electrons.
Does the number of valence electrons in an atom of an element determines many properties of the element including the ways in which the atom can bond with other atoms?
Yes. The atom only bonds spontaneously if its to become more stable. So depending on the valence electrons, they have different forms of getting that stability. Let's see: Elements from the first and second group have 1 and 2 electrons of valence, respectively, so they tend to give them up. That's why they tend to bond with ionic bonds. They never steal electrons from others. Elements from the 17th group, are missing one electron to have their valence orbitals full, so again, they tend to steal electrons from those of group 1, forming stable ionic bonds. They can also give up some of their electrons, but more commonly they prefer to steal one. Elements like N and C, have their valence orbitals close to 50% filled, so they tend to prefer sharing electrons, that is, covalent bonds. Finally noble gases, have their valence orbitals filled with electrons, so they don't react with anything, and the only bonds they make, are weak Van der Waal bonds between themselves.
Why carbon atoms cannot form ionic bonds in its compounds?
carbon atoms cannot form ionic bonds because it can neither gain or loose electrons as it has 4 electrons in its valence shell.so it share its electrons which forms covalent bond.
What is the electrons in oxygen?
First of all, what "are" the electrons in oxygen.Oxygen has 6 valence electrons (the electrons in the outer shell or in other words, the electrons that will react). Since every atom wants to have 8 valence electrons, then oxygen will want to gain 2electrons. Therefore it will use two of it's electrons to form bonds. Oxygen always forms two bonds with two lone pairs. :ö= or -:ö-
How many covalent bonds does nitrogen normally form?
Nitrogen can form 3 covalent bonds. Nitrogen has 5 valence electrons. If nitrogen is to remain neutral complete the following equation number of valence = number of non-bonding electrons + (1/2) bonded electrons 5 = 2 + (1/2) 6
