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प्रश्न
Noble gases belong to______ group of the periodic table.
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उत्तर
Noble gases belong to 18th group of the periodic table.
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संबंधित प्रश्न
What is periodicity in properties of elements with reference to the Modern Periodic Table?
Name the scientist who first of all showed that atomic number of an element is a more fundamental property than its atomic mass.
(b) What is the number of elements is 3rd period, the modern periodic table?
Correct the statement.
Copper and zinc are representative elements.
Give the symbol and valency of the following element and radical.
Sodium
Give the symbol and valency of the following element and radical.
Chlorine [Chloride]
State the number of elements in Period 3 of the Periodic Table.
The element which has the least tendency to lose electrons is ______
An element X which is a yellow solid at room temperature shows catenation and allotropy. X forms two oxides which are also formed during the thermal decomposition of ferrous sulphate crystals and are the major air pollutants.
- Identify the element X
- Write the electronic configuration of X
- Write the balanced chemical equation for the thermal decomposition of ferrous sulphate crystals?
- What would be the nature (acidic/ basic) of oxides formed?
- Locate the position of the element in the Modern Periodic Table.
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?
