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प्रश्न
Write an Explanation.
Electronegativity
उत्तर
The tendency of an element to form an anion by gaining electron in a valence shell is called electronegativity.
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संबंधित प्रश्न
Choose the word or phrase from the brackets which correctly complete the following statement:
Metals are good ______ (oxidizing agents/reducing agents) because they are electron ______ (acceptors/donors).
Metallic character and non-metallic character are periodic properties discuss ?
Explain the following:
Group 17 elements are strong non-metals, while group 1 elements are strong metals.
How does the chemical reactivity of
alkali metals vary?
Complete the following sentences
Moving across a ………….. of the periodic table the elements show increasing ………………..character (group, period, metallic, non-metallic).
A metal M forms as oxide having the formula M2O3. It belongs to third period. Write the atomic number and valency of the metal.
Explain why the following statement is not correct:
All groups contain metals and non metals.
Mg2+, Cu2+, Na1+, H1+ (In the order of preferential discharge at the cathode)
Among the elements of the second period, Li to Ne, pick out the element that is the most reactive metal
Arrange the following elements in order of their decreasing metallic character.
Na, Si, Cl, Mg, Al
The tendency of an element to form cation is the _______ character of that element.
The tendency of an element to form anion is the ______ character of that element.
Write the name.
The atom having the smallest atomic radius from zero group.
Write an Explanation.
Electropositivity
An element has atomic number 17. To which group, the period does it belong? It is metal or non-metal?
Which of the following set of elements is written in order of their increasing metallic character?
Choose the odd one out and write the reason:
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.
