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प्रश्न
Fill in the following blank with suitable word:
Group 1 elements are called ...............
उत्तर
Group 1 elements are called alkali metals.
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संबंधित प्रश्न
Why do all the elements of the same group have similar properties?
Explain why All the elements of a period have different chemical properties.
Correct the statement.
Transition elements are placed at extreme right of the periodic table.
The horizontal rows in a periodic table are called _____.
Group 13 to 18 : p block : : _______ : d block
The amount of energy released when one or more electrons is added to the neutral atom 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.
Define groups of modern periodic table.
Give reason for the following:
Inert gases do not form ion.
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?
