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प्रश्न
What is meant by a group, in a periodic table?
उत्तर
A group is a vertical column of elements in a periodic table.
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संबंधित प्रश्न
Which of the following statement about the modern periodic table is correct?
(a) It has 18 horizontal rows known as periods.
(b) It has 7 vertical columns known as periods.
(c) It has 18 vertical columns known as groups.
(d) It has 7 horizontal rows known as groups.
What is the usual number of valence electrons in the atoms of the last element in a period?
How do the atomic radii of elements change as we go from left to right in a period of the periodic table?
What are the groups in a periodic table? Give two characteristics of each.
Name two elements in each case:
Actinides
An element A has 2 electrons in its fourth shell. State its electronic configuration.
Give the symbol and valency of the following element and radical.
Aluminium
State what is meant by the term chemical formula.
Where would you locate the element with electronic configuration 2,8 in the Modern Periodic Table?
Group 16 elements are collectively called as ______.
