A cation is smaller than neutral atom and an anion is larger than a ne – InterviewSolution

InterviewSolution

1.	A cation is smaller than neutral atom and an anion is larger than a neutral atom. Why?
Answer» Exit of electrons from outermost orbit results in formation of cation. In this process, removal of the outermost orbit increases the effective nuclear charge on remaining electrons. Hence, the size of a cation is smaller than that of a neutral atom. Acceptance of electron by an atom results in formation of anion. In this process, addition of extra electrons reduces the effective nuclear charge on electrons. Hence, size of an anion is larger than that of a neutral atom.

Discussion

No Comment Found

Related InterviewSolutions

What are the other names for elements of d-block and f-block?
What trend is shown by following properties in the periodic table? (a) Atomic radius (b) Enthalpy of ionisation (c) Electronegativity
14 elements after actinium are called (a) Lanthanides (b) Actinides (c) d-block elements (d) p-blockelements
An element has an atomic number of 15 with which of the following elements will it show similar chemical properties? (a) Be(4) (b) Ne(10) (c) N(7) (d) O(8)
The group number and period number respectively of an element with atomic number 8 is (a) 6, 2 (b) 16, 2 (c) 6, 8 (d) 16,4
An element belongs to period 2 and group 2 the number of valence electrons in the atoms of this element is (a) 2 (b) 4 (c) 3 (d) 1
Fluorine (F) atomic number 9 and chlorine (Cl) atomic number = 17 are placed in group number 17, what are the number of valence electrons present in them.
An element ‘A’ has atomic number 11, name the period and group number to which it belongs.
An element ‘X’ belongs to II group and 2nd period. Write the atomic number and name of element.
Why are noble gases placed in the separate group?