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The elements that do not have quoted ionic radii are the noble gases. These elements do not form ionic compounds and therefore there is no crystallographic data. All of the other elements have ionic radii, these are either an "estimate" from the apparent size of the ion in different compounds, or a calculated value. Ionic radius is a useful idea but it should not be taken to literally, comparatively few compounds are truly ionic, most of them have some covalent character. The best examples of elements where the ionic radius is meaningful are the group 1, 2 metals, oxide ion and the lighter halogens.
At room temperature, most ionic compounds are solids.
At room temperature, most ionic compounds are solids.
Ionic bond.
i dunno my dumb teacher wants me to find out she should ask a dam scientist!
The elements that do not have quoted ionic radii are the noble gases. These elements do not form ionic compounds and therefore there is no crystallographic data. All of the other elements have ionic radii, these are either an "estimate" from the apparent size of the ion in different compounds, or a calculated value. Ionic radius is a useful idea but it should not be taken to literally, comparatively few compounds are truly ionic, most of them have some covalent character. The best examples of elements where the ionic radius is meaningful are the group 1, 2 metals, oxide ion and the lighter halogens.
At room temperature, most ionic compounds are solids.
At room temperature, most ionic compounds are solids.
Ionic bond.
It is ionic.
Water, because it is polar, similar to most ionic compounds.
Compounds.
A "salt" is another name for ionic compounds
Members of groups 1, 2, 6, 7 in the Periodic Table are most likely to form ionic compounds. It depends on what pair of elements are involved, for instance one rule of thumb is metal with nonmetal. Another, more systematic way, to assess this is to consider the difference in electronegativity between the two elements. If the electronegativity difference is 2 or more then the bond will be ionic. If the difference is less than 2 but more than 1.6 and one of the elements is a metal then there can be an ionic bond.
Atoms are the building blocks of all matter. Atoms are the most basic units of an element that have the properties of that element. Atoms of elements combine to form molecules, which can be molecular compounds, and atoms of elements can combine to form ionic compounds, as well. Compounds contain atoms of two or more elements chemically combined.
highly electropositive elements react with highly electronegative elements to form ionic compounds. The former forms cations and the latter forms anions and the force of attraction between the positively charged cation and the negatively charged anion is the ionic bond.