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Group 8A elements, also known as the noble gases, do not form ions because they have a stable electron configuration with a full outer shell of electrons. This means they do not gain or lose electrons to achieve a stable configuration, so the concept of ionic radius is not applicable to them.
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Why do some elements exist without ionic radius?
Some elements do not have a well-defined ionic radius because they typically do not form ions in chemical reactions or have variable oxidation states that make it difficult to determine a single ionic radius value. Additionally, some elements may have a low tendency to gain or lose electrons, making the concept of ionic radius less relevant.
Why do some elements not have a value for ionic radius?
Some elements do not have a well-defined ionic radius because their ions may have varying charge states or coordination environments which affect their size. Additionally, experimental challenges in measuring the ionic radii of certain elements may also contribute to the lack of precise data for these elements.
What is the trend for ionic radius for medals?
The trend for ionic radius across the metals is that as you move down a group on the periodic table, the ionic radius increases. This is because as you go down a group, the number of electron shells increases, leading to larger atomic size and hence larger ionic radius.
How does ionic radius change as you move down and across the periodic table?
As you move down a group in the periodic table, the ionic radius tends to increase due to the addition of new electron shells. Across a period from left to right, the ionic radius generally decreases as the increasing nuclear charge pulls the electrons closer to the nucleus, resulting in a smaller radius.
Is Li have the smallest ionic radius?
No, Li does not have the smallest ionic radius. Li has a relatively larger ionic radius compared to elements like H and He. As you move across a period in the periodic table, ionic radius decreases.
Why do some elements exist without ionic radius?
Some elements do not have a well-defined ionic radius because they typically do not form ions in chemical reactions or have variable oxidation states that make it difficult to determine a single ionic radius value. Additionally, some elements may have a low tendency to gain or lose electrons, making the concept of ionic radius less relevant.
Why do some elements not have a value for ionic radius?
Some elements do not have a well-defined ionic radius because their ions may have varying charge states or coordination environments which affect their size. Additionally, experimental challenges in measuring the ionic radii of certain elements may also contribute to the lack of precise data for these elements.
What is the trend for ionic radius for medals?
The trend for ionic radius across the metals is that as you move down a group on the periodic table, the ionic radius increases. This is because as you go down a group, the number of electron shells increases, leading to larger atomic size and hence larger ionic radius.
Compounds contains an ionic bond?
In general, when an element in group 1 or group 2 combines with elements in group 16 or group 17, ionic bonds are formed between the two elements.
How does ionic radius change as you move down and across the periodic table?
As you move down a group in the periodic table, the ionic radius tends to increase due to the addition of new electron shells. Across a period from left to right, the ionic radius generally decreases as the increasing nuclear charge pulls the electrons closer to the nucleus, resulting in a smaller radius.
Is Li have the smallest ionic radius?
No, Li does not have the smallest ionic radius. Li has a relatively larger ionic radius compared to elements like H and He. As you move across a period in the periodic table, ionic radius decreases.
What is true of the ionic size of the elements in a group as one from the bottom to the top in that group?
Ionic size increases from top to bottom within the group.
Which element has the largest radius?
francium has the largest ionic radius
What elements have an ionic radius equal to the atomic radius?
In ionic compounds, the cation typically has an ionic radius smaller than its atomic radius due to the loss of electrons, while the anion has an ionic radius larger than its atomic radius due to the gain of electrons. Therefore, in an ionic compound, the sum of the ionic radii of the cation and anion will generally equal the sum of the atomic radii of the two atoms.
Which ion has the smallest ionic radius Mg2 plus or Ca2 plus?
Mg2+ has the smaller ionic radius compared to Ca2+ because as you move down a group in the periodic table, the ionic radius increases due to the addition of electron shells. Mg and Ca are in the same group, but Ca has more electron shells than Mg, resulting in a larger ionic radius for Ca2+.
Which pair of elements is more likely to form ionic compounds?
Elements with a greater difference in electronegativity are more likely to form ionic compounds. For example, elements like sodium and chlorine are more likely to form ionic compounds due to the large electronegativity difference between them, resulting in the transfer of electrons and the formation of ionic bonds.
Can group 1 and 2 elements become cations when they form ionic bonds?
Yes, group 1 and 2 elements can become cations when they form ionic bonds. Group 1 elements, such as sodium, readily lose one electron to become sodium cations with a +1 charge. Group 2 elements, such as magnesium, lose two electrons to become magnesium cations with a +2 charge in ionic compounds.
