Yes, a covalent bond is formed when two atoms share an electron pair (upto 3 electron pairs, even). Electrons like to pair up in their orbitals, and all the orbitals in a shell like to be full. Oxygen, for instance, has 6 electrons in its out shell (and it's in the 6A column of the Periodic Table), but the shell can hold 8 (2 in 2s and 6 in 2p). Hydrogen has only 1 electron in its 1s orbital, but 1 more electron will fill the shell. If the unpaired electrons of hydrogen get together with the unpaired electrons of oxygen, then the hydrogens will think they have 2 electrons, and the oxygen will think it has 8 outer electrons, and everybody's happy.
Yes, it is true.
Covalent bond
In a covalent bond electrons are shared between two electrons.
No, they arent. Valence electrons are the amount of electrons the element has in its outermost shell. Electrons dont bond, they can either be shared or transferred. An ionic bond transfers electrons and a covalent bond shares electrons.
a chemical bond in which valence electrons are shared between atoms giving each of them a full valence shell is a covalent bond.
There are two types of chemical bonds. In this case, where electrons are shared among all the atoms, this is a covalent bond.
The answer is c. Valence electrons are shared between oxygen atoms & D. Four valence eletrons are shared
no
They are the electrons in the (outer) valence shell
Covalent bond
In a covalent bond electrons are shared between two electrons.
The most important are the valence electrons.The electrons perform the bonding by being shared between the atoms.
In metallic bonding, the valence electrons freely 'jump' from atom to atom, forming kind of an electron sea.
Valence electrons
They are lost.
No, they arent. Valence electrons are the amount of electrons the element has in its outermost shell. Electrons dont bond, they can either be shared or transferred. An ionic bond transfers electrons and a covalent bond shares electrons.
The valence electrons are the only electrons that are involved in chemical bonding. These electrons can be shared or transferred. A simple rule of thumb is that atoms "strive" to attain the octet either by loss gain or sharing of electrons.
a chemical bond in which valence electrons are shared between atoms giving each of them a full valence shell is a covalent bond.