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How does the size of the atomic radius in a nonmetal compare to size of its ionic radius?
Wiki User
∙ 15y ago
I'm not positive but.... the ionic radius of a metallic atom is slammer than its atomic radius because metallic atoms want to loose electrons. The loss of electrons increases the pull of the nucleus, drawing the electrons closer and thereby making the ionic radius smaller than the atomic radius.
Wiki User
∙ 16y ago
Wiki User
∙ 15y agoThe protons in the nucleus hold the remaining electrons more strongly. As you might expect, for negatively charged ions the nuclear attractive force decreases (and there is enhanced electron-electron repulsion), so the electrons are less tightly held by the nucleus. The result is that the negatively charged ion has a larger radius than the neutral atom.
Wiki User
∙ 15y agoIt depends on whether it is a cation or an anion (positive or negative). If an atom loses electrons and forms a cation, then the ionic radius decreases compared to the neutral atom.
Conversely, if an atom gains an electron an forms an anion, the ionic radius increases.
If an ion has fewer protons than electrons, then their pull on the electrons isn't as great. Therefore, the electrons will spread out further away from the nucleus, causing the radius to increase. If an ion has more protons than electrons, then the protons will have a greater pull on the electrons, pulling them in. ** Note that this is a general trend, and there are exceptions
Wiki User
∙ 11y agoin the case of non-metals, the anions are formed by the addition of electrons. So the ionic radius is larger than that of the atomic radius
Wiki User
∙ 6y agowhat is the differance of the atomic radius in metals and nonmetals
Wiki User
∙ 14y agoionic is bigger
Wiki User
∙ 8y agoit doesnt matter
Wiki User
∙ 14y agoyes
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Water dissolves ionic compounds because water molecules?
So basically an atom of water or (H2O) is made up of two hydrogen atoms and one oxygen atom that are covalently bonded together to make a compound. A covalent bond is when two nonmetal elements, most commonly, two gases come together to make a compound. So water is a covalent bond because it is hydrogen bonded with oxygen which are both nonmetal elements being bonded together to form a covalent bond. There is a difference between ionic bonds and covalent bonds. The difference between an ionic bond and a covalent bond is that in a covalent bond the two or more elements that are being bonded together share electrons rather than take them like in an ionic compound. So with the fact that covalently bonded compounds share electrons in mind, electrons are not evenly distributed or shared throughout a water molecule because oxygen atoms strongly attract electrons. Because the oxygen atoms do this they pull electrons away from the hydrogen atoms giving them a partial positive charge. Now that the oxygen atom has the electrons closer to it than the other two hydrogen atoms it gives the oxygen atom a partially negative charge. This act of atoms not evenly sharing electrons is called a polar compound. What is special about compounds that are polar is that is attracts both positive and negative ions of an ionic commpund. Thats why water can dissolve ionic compounds because its polar structure.
Which compounds would you expect to be ionic H2O2 SF6 CaO H2O or NH3?
CaO is the only ionic
In naming a binary ionic compound the name of the appears first followed by the name of the?
Binary ionic compounds are named by writing the name of the action, followed by the name of the anion. Potassium bromide is an example of an ionic compound.
Which interactions and processes contribute to the dissolution of ionic compounds in water?
The process of providing energy to break ionic bonds and allow soluble ionic compounds to dissolve in water?
From long process derive the expression for bulk modulus an ionic crystal?
The expressions that are derived are from isothermal bulk modulus and its pressure derivatives. The pressure varies to create the ionic crystal.
How does the ionic radius of a nonmetal compare with its atomic radius?
in the case of non-metals, the anions are formed by the addition of electrons. So the ionic radius is larger than that of the atomic radius
What happens to the atomic radius when an electron is lost?
the positive ionic radius is smaller than the neutral atomic radius
Does a metal have a greater atomic radius or ionic radius?
A metal will tend to lose electrons and hence the atomic radius is higher than the ionic radius.
How does ionic radius differ from atomic radius?
Ionic radius is greater than atomic radius in a negative ion and less than it in a positive ion.
When atoms gains electrons what happens to the atomic radius?
The negative ionic radius is larger than the neutral atomic radius
What happens to an atomic radius when an electrons is lost?
The positive ionic radius is smaller than the neutral atomic radius
What happens to the atomic radius when an electron is gained?
The negative ionic radius is larger than the neutral atomic radius
What is hydrogens atomic radius?
* Atomic Radius: 0.79Å * Atomic Volume: 14.4cm3/mol * Covalent Radius: 0.32Å * Ionic Radius: 0.012Å * Atomic Radius: 0.79Å * Atomic Volume: 14.4cm3/mol * Covalent Radius: 0.32Å * Ionic Radius: 0.012Å
What is the relationship of ionic radius and atomic number?
They both increase
What is the trend in ionic radius from left to right within a period?
Atomic radius
Is metallic radius only for metals?
Yes. There are other measures for ions (ionic radius) and free atoms(atomic radius) and covalent radius. Metallic, ionic and covalent are based on measurements of distances in crystals or covelnt bond lengths, atomic radius is based more on calcuation than observation.
What is another word for atomic radius?
The other word for atomic radius includes the Van der Waals radius, ionic radius, and covalent radius. The atomic radius refers to half the distance between the nuclei of identical neighboring atoms in the solid form of an element.
