Advertisements
Advertisements
Question
Which is greater in size Fe2+ or Fe3+?
Advertisements
Solution 1
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.
Solution 2
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.
RELATED QUESTIONS
Arrange the following as per the instruction given in the brackets:
Na, K, Li (Increasing atomic size)
What do you understand by atomic size? State its unit?
Why is the size of neon greater than fluorine?
Which is greater in size an atom or an anion?
Give reasons for the following:
The size of the anion is greater than the size of the parent atom.
Write the name and symbol of the element from the description.
The noble gas with the smallest atomic radius.
Fill in the blank by selecting the correct word from the bracket.
If an element has seven electrons in its outermost shell then it is likely to have the _____ atomic size among all the elements in the same period.
Write scientific reason.
In same period, boron and oxygen elements have different atomic size.
Which of the following gives the correct increasing order of the atomic radii of O, F, and N?
Which one of the following has the largest atomic radius?
