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प्रश्न
Select the correct answer from the options given below.
It is a period having elements from atomic no. 11 to 18.
पर्याय
period – 1
period – 2
period – 3
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उत्तर
period – 3
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संबंधित प्रश्न
In terms of electronic configurations, explain the variation in the size of the atoms of the elements belonging to the same period and same group ?
Name two properties of elements whose magnitudes change when going from top to bottom in a group of the periodic table. In what manner do they change?
An element X belong to 4th period and 17th group, state.
name the family to which it belong.
Name the element which has the electronic configuration 2, 8, 3?
What is meant by periodicity of elements?
Choose the most appropriate answer from the following list of oxides which fit the description.
An oxide which dissolves in water forming an acid.
Arrange the following as per instruction given in the bracket.
Mg, Cl, Na, S, Si (decreasing order of atomic size)
Name and state the following with reference to the elements of the first three periods of the periodic table.
Alkaline earth metal in period 3.
Write the electronic configuration of two elements A and B whose atomic numbers are 20 and 17 respectively. Write the molecular formula of the compound formed when element A reacts with element B. State whether this compound is acidic, basic or neutral. Give a reason to justify your answer.
Name the elements in the correct order of their increasing atomic numbers present in the first, second, and third short periods of the periodic table.
State which of the elements are –
- metallic
- non-metallic
- noble gases
in each of the periods 2 and 3.
