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प्रश्न
Write an Explanation.
Electropositivity
उत्तर
The tendency of an atom of an element to form cation by losing its valence electrons is called electropositivity of that element.
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संबंधित प्रश्न
Name any five periods properties.
Give the trend in metallic character:
(i) across the period left to right
Explain the following:
Group 17 elements are strong non-metals, while group 1 elements are strong metals.
The electronic configuration of an element T is 2, 8, 8, 1.
Is it a metal or a non-metal?
Explain why the following statement is not correct:
All groups contain metals and non metals.
Select the correct answer
Which of the following electronic structure is of a metal?
Select the correct answer
Configuration of an element is 2, 8, 1. Which of the following statement is true?
A group of elements in the periodic table is given below (Boron is the first member of the group and Thallium is the last). Answer the following question in relation to the given group of elements:
Which element has the most metallic character?
Refering to changes in the properties of elements on moving from left to right across a period of the periodic table. Choose the correct answer.
The non-metallic character of the elements :
The tendency of an element to form anion is the ______ character of that element.
Electropositivity means _______.
The metallic character of the element decreases moving across a period from left to the right.
Electronegativity is the metallic property of an element.
3, 1, 2 electrons are in valence shells of X, Y, Z elements. From this information, state the group in which they belong and write their valencies.
The metal which is hard and has a high melting point and used in filaments of electrical bulbs is ______
Three elements B, Si and Ge are
Arrange:
Be, Li, C, B, N, O, F (in increasing metallic character).
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:
Will the elements in the group to the right of this boron group be more metallic or less metallic in character? Justify your answer.
