Advertisements
Advertisements
Question
Which is greater in size an atom or an anion?
Solution
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.
RELATED QUESTIONS
Why is the size of sodium is greater than magnesium?
With reference to the variation of properties in the Periodic Table, which of the following is generally true?
Atomic size increases from left to right across a period.
The changes in the properties of elements on moving from left to right across a period of the Periodic Table. For the property, choose the correct answer.
The atomic size:
Atomic radius is expressed in the unit _______.
Nanometer unit is used to measure atomic radius.
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.
Which of the following is the correct order of atomic size?
An element with the largest atomic radius among the following is ______.
Arrange the following as per instruction given in the bracket.
Mg, Cl, Na, S, Si (decreasing order of atomic size)
Give reason for the following:
The size of a Cl− ion is greater than the size of a Cl atom.
