0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
Why do some elements exist without ionic radius?
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.
Which element has a larger ionic radius than calcium?
(Chlorine, Fluorine, anything that gains an electron when it ionizes) For example: when F becomes F−, it gains one electron but has the same number of protons, meaning the attraction of the protons to the electrons is weaker, creating a larger radius.
Is salt a pure compound which contains ionic bonds?
The usual table salt, sodium chloride, is definitely ionic, since it has one of the more electropositive elements with one of the more electronegative elements. In chemistry, salt refers to many compounds, but they have some similar traits.
Is it true A compound is made up of one or more elements chemically bound together?
Yes, it is true. The elements are bond with ionic or covalent bonds. NaCl,Glucose are some compounds.
Does magnesium nitride have a ionic or covalent bond?
In this case, Mg has a value of 1.3 and N has a value of 3.0, so it is an ionic bond. Ionic and covalent bonds are on a continuum. Some "ionic" compounds are in fact partly covalent because the positive cation (e.g. magnesium) polarizes (attracts the electrons of) the anion forming a stronger bond than if it was 100% ionic. A table of ELECTRONEGATIVITY can help one determine whether a bond is ionic or covalent. The bigger the difference in electronegativity the more ionic the bond.
Why do some elements exist without ionic radius?
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.
Which group of elemens lose 2 valence electrons when heir atoms form ionic bonds?
The elements in columns 2 and 12 of a wide form periodic table will lose 2 valence electrons when the elements form ionic bonds. (Some other elements also have or can have this property.)
What are some art elements that stand out to you?
Texture, and Value
Which element has a larger ionic radius than calcium?
(Chlorine, Fluorine, anything that gains an electron when it ionizes) For example: when F becomes F−, it gains one electron but has the same number of protons, meaning the attraction of the protons to the electrons is weaker, creating a larger radius.
The atomic radius of potassium is smaller than the atomic radius of?
Rubidium; the next higher atomic numbered element in the same column of the periodic table always has a higher atomic radius, with some exceptions among transition elements due to the "lanthanide contraction". However, potassium and rubidium are not transition elements.
Is salt a pure compound which contains ionic bonds?
The usual table salt, sodium chloride, is definitely ionic, since it has one of the more electropositive elements with one of the more electronegative elements. In chemistry, salt refers to many compounds, but they have some similar traits.
What are some of the uses of the periodic table of elements?
- allowed rational ordering of chemical elements- predicted the properties of unknown elements- the chemical behavior of chemical elements can be predicted- the atomic radius can be predicted- the melting point can be predictedand more
Is it true A compound is made up of one or more elements chemically bound together?
Yes, it is true. The elements are bond with ionic or covalent bonds. NaCl,Glucose are some compounds.
Does magnesium nitride have a ionic or covalent bond?
In this case, Mg has a value of 1.3 and N has a value of 3.0, so it is an ionic bond. Ionic and covalent bonds are on a continuum. Some "ionic" compounds are in fact partly covalent because the positive cation (e.g. magnesium) polarizes (attracts the electrons of) the anion forming a stronger bond than if it was 100% ionic. A table of ELECTRONEGATIVITY can help one determine whether a bond is ionic or covalent. The bigger the difference in electronegativity the more ionic the bond.
Water resistivity depends on?
Several factors influence water resistivity. Some of the most important are 1) the concentration of ions in the water; 2) the mobility of the ions in the water (smaller ionic radius ions tend to decrease water resistivity more than larger ionic radius ions); 3) the oxidation state of the ions; and 4) the temperature of the water.
What two groups of the periodic table will bond during an ionic bond?
Ionic bonds are usually formed between metals and non metals. Generally speaking, elements in group 1 or 2 react with elements with group 16 or 17 to form ionic salts. Some of the common examples are sodium chloride and magnesium sulfide.
What are some tricks to remember ionic and covalent bonds?
The most important distinction between an ionic and a covalent bond is the different element groups that is bonded in each. In an ionic bond, a metal is bonded to a nonmetal. While in a covalent bond, nonmetals are bonded with nonmetals. Additionally, ionic bonding is an attraction between oppositely charged ions (for example a sodium ion (Na+) and a chloride ion (Cl-)) and covalent bonding is caused by a sharing of electron or electrons. The sharing of electron or electrons in covalent bonding can be equal or not. If not, the covalent bond is polar (an example of this would be water). In the related links you will see a periodic table of elements. Bonds between blue/red elements with green elements (or hydrogen) would require an ionic bond. Bonds between green elements and green elements would require a covalent bond.
