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प्रश्न
Which is greater in size an atom or a cation?
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उत्तर
An atom is always greater than a cation since the loss of electrons forms a cation; hence, protons are more than electrons in a cation. The nucleus strongly attracts electrons and pulls them inward.
संबंधित प्रश्न
Fill in the blank:
On moving across a period from right to left in the periodic table, the atomic size of the atom ___________.
Give scientific reasons for the following:
Atomic radius goes on decreasing while going from left to right in a period.
Arrange the following in increasing order of property indicated
I, I+, I- (atomic size)
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.
_______ is the distance between the nucleus of the atom and its outermost shell.
Moving from left to right, the size of the atom decreases.
Which of the following is the correct order of atomic size?
Arrange the following elements in increasing order of their atomic radii.
- Li, Be, F, N
- Cl, At, Br I
- Electropositive nature of the element(s) increases down the group and decreases across the period
- Electronegativity of the element decreases down the group and increases across the period
- Atomic size increases down the group and decreases across a period (left to right)
- Metallic character increases down the group and decreases across a period.
On the basis of the above trends of the Periodic Table, answer the following about the elements with atomic numbers 3 to 9.
- Name the most electropositive element among them
- Name the most electronegative element
- Name the element with smallest atomic size
- Name the element which is a metalloid
- Name the element which shows maximum valency.
Arrange the following as per instruction given in the bracket.
Mg, Cl, Na, S, Si (decreasing order of atomic size)
