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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
How does the tendency of elements to gain electrons change as we move from left to right in a period? State the reason of this change.
Fill in the following blank with suitable word:
Group 1 elements are called ...............
What is a group in the periodic table?
What do you understand by typical elements?
Name the metals in the first twenty elements.
An element barium has atomic number 56. Look up its position in the periodic table and answer the following question.
What will be the formula of its phosphate?
The modern periodic table shows the molecular masses of the elements in each frame.
State whether true or false. If false, correct the statement.
Lanthanides and actinides are kept at the bottom of the periodic table because they resemble each other but they do not resemble with any other group elements.
Name two elements that you would expect to show chemical reactions similar to calcium. What is the basis of your choice?
A group of elements in the periodic table is given below (Boron is the first member of the group and Thallium is the last).
Boron, Aluminium, Gallium, Indium, Thallium
Answer the following question in relation to the above group of elements:
If the electronic configuration of aluminium is 2, 8, 3, how many electrons are there in the outer shell of thallium?
