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प्रश्न
In which part of a group would you separately expect the elements to have the largest atomic size?
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उत्तर १
The largest atomic size is found at the bottom of the group, as the atomic size increases on moving down in a group of the periodic table.
उत्तर २
The largest atomic size can be expected in the lower part of the group.
संबंधित प्रश्न
The atomic masses of three elements A, B and C having similar chemical properties are 7, 23 and 39, respectively.
- Calculate the average atomic mass of elements A and C.
- Compare the average atomic mass with atomic mass of B.
- What could the elements A, B and C be?
Why sodium element of group 1 and chlorine element of group 17 both have valency 1?
Fill in the blank
There are ______ groups and ______ periods in the modern form of periodic table.
Select the correct answer
Most reactive character among the elements given below is found in
Name the elements in period 1.
The following table represents the first period of the modern periodic table. Study the table and answer the questions that follow:
- Write the formula of the sulphate of the element with atomic number 13.
- What type of bonding will be present in the oxide of the element with atomic number 1?
- Which feature of the atomic structure accounts for the similarities in the chemical properties of the elements in group VIIA of the periodic table?
- Name the element which has the highest ionization potential.
- How many electrons are present in the valence shell of the element with atomic number 18?
- What is the name given to the energy released, when an atom in its isolated gaseous state accepts an electron to form an anion?
- What is the electronic configuration of the element in the third period which gains one electron to become an anion?
- Fill in the blanks:
The atomic size ______ as we move from left to right across the period, because the ______ increases, but the ______ remains the same.
The following questions refer to the Periodic Table.
Name the first and last element in period 2.
Atomic number of an element is 16. State
- the period to which it belongs
- the number of valence electrons
- whether it is a metal or non-metal
What is meant by a Group in the Periodic Table?
State the property trends in general of elements on moving down in a group of the periodic table.
