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It doesn't exactly occupy more space, but it has a different shape to a bond pair. In a bond pair we have two positive nuclei, with most of the density of the bonding electron pair between the atoms. The outer nucleus attracts the bond pair outwards from the central atom. In a lone pair there is only the central atom to attract the electrons, so they are pulled in more than the bond pair, producing a fatter, squatter shape. This means that more of the electron density is near the central atom than with a bond pair, which makes it more effective at repelling the other electron pairs. Thus there is a difference in the amount of repulsion between different sorts of pair, meaning that he angles between them are different too, in the order, from greatest to least, lone pair-lone pair, lone pair-bond pair, bond pair-bond pair.
What else can I help you with?
How many lone pairs of electrons are on the As atom in AsCl3?
There are two lone pairs of electrons on the As atom in AsCl3.
How many lone pair electrons are in ch2o?
There is 1 lone pair around the central C atom
How many lone pairs of electrons does nitrogen have?
There is one lone pair of electrons on the nitrogen atom.
How many lone pair electrons are in CO2?
There are 2 lone pairs in each Oxygen atom. So there are 4 lone pairs in total, which means 8 lone pair electrons.
Why does the presence of lone pairs contribute to the polarity of a water molecule?
The presence of lone pairs on the oxygen atom in a water molecule creates an uneven distribution of charge, with the oxygen being partially negative and the hydrogen atoms being partially positive. This charge separation makes the water molecule polar, as it has a positive and negative end.
How many lone pairs of electrons are on the As atom in AsCl3?
There are two lone pairs of electrons on the As atom in AsCl3.
How many lone pairs of electrons does nitrogen triflouride have?
There is one lone pair of electrons on the nitrogen atom.
What is the definition of lone pairs of electrons?
The lone pair electron region is the place around the central atom where electrons not bonding with another atom can be found. A lone pair of electrons are electrons that are not bonded with other atoms.
How many lone pair electrons are in ch2o?
There is 1 lone pair around the central C atom
How many lone pairs of electrons does nitrogen have?
There is one lone pair of electrons on the nitrogen atom.
How many lone pairs of electrons in if5?
If an atom has five valence electrons, it will have one lone pair of electrons.
Does HCI have one lone pair of electrons?
Cl atom in HCl has three lone pairs of electrons.
How many lone pairs of electrons exist on the central atom in ammonia?
One lone pair. The central atom is N (nitrogen) which has 5 valence electrons. Three of them are shared with 3 hydrogen atoms, leaving 2 electrons (1 lone pair) on the N.
How many lone pair electrons are in CO2?
There are 2 lone pairs in each Oxygen atom. So there are 4 lone pairs in total, which means 8 lone pair electrons.
How many Number of Lone Pairs of Electrons are in Chlorine?
There are three lone pairs present in chlorine atom
How many lone pairs of electrons exist on the central atom in ammonia NH3?
There is one lone pair of electrons on the central nitrogen atom in ammonia (NH3).
What is meant by when there are two lone electons?
Called lone pair(s) of electrons,this exists when the atom such as Nitrogen in the ammonia has pair of electrons used to form what is called coordination bond as the lone pair of nitrogen occupy an vacant orbital like the orbital of the hydrogen proton released from acids. lone pair of ammonia + vacant orbital of hydrogen proton = Ammonium ion
