Advertisements
Advertisements
Question
On moving from left to right in a periodic table, the size of the atom _______.
Options
increases
decreases
decreases first and then increases
does not change
Advertisements
Solution
On moving from left to right in a periodic table, the size of the atom decreases.
APPEARS IN
RELATED QUESTIONS
Arrange the following as per the instruction given in the brackets:
Na, K, Li (Increasing atomic size)
Why is the size of neon greater than fluorine?
Which is greater in size an atom or a cation?
Which is greater in size an atom or an anion?
Give scientific reasons for the following:
Atomic radius goes on decreasing while going from left to right in a period.
Write a scientific reason.
Atomic radius goes on increasing down a group.
Among the elements of the second period, Li to Ne, pick out the element with the largest atomic size
The following questions refer to the Periodic Table.
What happens to the atomic size of elements moving from top to bottom of a group?
Arrange the following as per the instruction given in the bracket
Na, K, Li (Increasing atomic size)
Atomic radius is expressed in the unit _______.
The size of an atom depends on the number of valence electrons.
Write scientific reason.
In same period, boron and oxygen elements have different atomic size.
Which of the following is the correct order of atomic size?
An element X (atomic number 17) reacts with an element Y (atomic number 20) to form a divalent halide.
- Where in the periodic table are elements X and Y placed?
- Classify X and Y as metal (s), non-metal (s) or metalloid (s)
- What will be the nature of oxide of element Y? Identify the nature of bonding in the compound formed
- Draw the electron dot structure of the divalent halide
The diagram below shows part of the periodic table.
- Which elements would react together to form covalent compounds?
- Between the two elements W and Z, which will have a bigger atomic radius? Why?

Arrange the following in order of increasing radii:
Mg2+, Mg, Mg+
Explain your choice.
In Period 3 of the Periodic Table, element B is placed to the left of element A. On the basis of this information, choose the correct word from the option to complete the following statement:
The element A would have ______ atomic size than B.
Which one has the largest size?
