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प्रश्न
The horizontal rows in a periodic table are called _____.
उत्तर
The horizontal rows in a periodic table are called periods.
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संबंधित प्रश्न
Compare and contrast the arrangement of elements in Mendeleev’s periodic Table and the Modern Periodic Table.
The electronic configuration of an element T is 2, 8, 8, 1.
What is the group number of T?
What is the number of elements in the 3rd period, of the modern periodic table?
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.
Zinc
State what is meant by the term chemical formula.
Give the chemical formula of magnesium nitrate
Write scientific reason.
There was ambiguity about the correct position of hydrogen in Mendeleev’s periodic table.
How does the property vary in periods and in groups?
- Write the electronic configuration of element X, given by its symbol as under: \[\ce{^40_20 X}\]
- Determine its position in the modem periodic table.
- What is the nature of its oxide?
- Name one other element of its group.
