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प्रश्न
Fill in the following blank with suitable word:
Group 18 elements are called ...............
उत्तर
Group 18 elements are called noble gases.
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संबंधित प्रश्न
What is meant by a period, in a periodic table?
How were the positions of cobalt and nickel resolved in the modern periodic table?
In the modern Periodic Table, why does cobalt with higher atomic mass of 58.93 appear before nickel having lower atomic mass of 58.71?
Answer the following in respect of element `31/15 P`
Give its electronic configuration
Name an element of group 18 which can form compounds.
Give the symbol and valency of the following element and radical.
Calcium
Which of the following statements about the Modern periodic table is correct?
The three elements A, B and C with similar properties have atomic masses X, Y and Z respectively. The mass of Y is approximately equal to the average mass of X and Z. What is such an arrangement of elements called as? Give one example of such a set of elements.
“Hydrogen occupies a unique position in Modern Periodic Table”. Justify the statement.
An element has 2 electrons in its N shell.
State its position in periodic table.
