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प्रश्न
The horizontal rows in a periodic table are called _____.
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उत्तर
The horizontal rows in a periodic table are called periods.
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संबंधित प्रश्न
What is periodicity in properties of elements with reference to the Modern Periodic Table?
Give two example of group 18 elements.
What are the merits of the modern periodic table of elements?
The atomic numbers of the three elements X, Y and Z are 2, 6 and 10 respectively.
(i) Which two elements belong to the same group?
(ii) Which two elements belong to the same period?
Give reasons for your choice.
Give the group number of following elements present in periodic table
Write a short note.
Structure of the modern periodic table.
State the modern periodic law.
The longest period of the Modern Periodic Table is period.
“Hydrogen occupies a unique position in Modern Periodic Table”. Justify the statement.
Choose an element from period 3 of modern periodic table that matches the description given below in instance. Give a reason for your choice.
It has same valency as Lithium.
