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प्रश्न
Which is greater in size Fe2+ or Fe3+?
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उत्तर १
An anion is greater than an atom since it is formed by the gain of electrons, and so the number of electrons is greater than the number of protons. The effective positive charge in the nucleus is less, so less inward pull is experienced. Hence, the size expands.
उत्तर २
Fe2+ has one extra electron than Fe3+, resulting in its greater size. Fe3+ has a stronger nuclear pull than Fe2+, leading the outermost shell to move closer to the nucleus, causing its size to decrease.
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संबंधित प्रश्न
Which is greater in size an atom or an anion?
Fill in the blank:
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Write the name and symbol of the element from the description.
The atom having the smallest size.
Give scientific reasons for the following:
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The metals of Group 2 from top to bottom are Be, Mg, Ca, Sr and Ba. Which one of these elements will form ions most readily and why?
While going from top to bottom in a group the atomic radius _______.
Write scientific reason.
In same period, boron and oxygen elements have different atomic size.
The electronic configuration of metal A is 2, 8, 18, 1.
The metal A when exposed to air and moisture forms B a green layered compound. A with con. H2 SO4 forms C and D along with water. D is a gaseous compound. Find A, B, C, and D.
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