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प्रश्न
Electropositivity means _______.
उत्तर
Electropositivity means the tendency of an atom of an element to form cation by losing its valence electrons.
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संबंधित प्रश्न
Give the trend in metallic character:
down the group top to bottom.
Complete the following sentences
Moving across a ………….. of the periodic table the elements show increasing ………………..character (group, period, metallic, non-metallic).
Which has the maximum metallic character Na, Li or K?
A metal M forms as oxide having the formula M2O3. It belongs to third period. Write the atomic number and valency of the metal.
In Period 3, the most metallic element is ______.
Select the correct answer
Configuration of an element is 2, 8, 1. Which of the following statement is true?
Copy and complete the following sentence choosing the correct word or words from those given below, at the end of the sentence:
The element at the bottom of a group would be expected to show ______ metallic character than the element at the top.
Within a group, where would you expect to find the element with the greatest metallic character.
Write the name.
The atom having the smallest atomic radius from zero group.
On moving down the group metallic character increases.
Electronegativity is the metallic property of an element.
Write scientific reason.
The metallic character of elements increases while going down the groups.
Which of the following set of elements is written in order of their increasing metallic character?
The metal which is hard and has a high melting point and used in filaments of electrical bulbs is ______
The lightest liquid metal is ______
An element has atomic number 17. To which group, the period does it belong? It is metal or non-metal?
Three elements B, Si and Ge are
Which of the following set of elements is written in order of their increasing metallic character?
Arrange:
Be, Li, C, B, N, O, F (in increasing metallic character).
