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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
Arrange the following as per the instruction given in the bracket.
Cs, Na, Li, K, Rb (increasing order of metallic character).
Arrange the following as per the instructions given in the brackets:
Na, K, Cl, S, Si (increasing order ionization energy)
Is is metal or non-metal?
Answer the following in respect of element `31/15 P `
Is it a metal or non - metal
Give the trend in metallic character:
(i) across the period left to right
Explain the following:
Metallic character of elements decreases from left to right in a period while it increases in moving down a group.
How do the following change on moving from left to right in a period of the periodic table?
Give examples in support of your answer.
Nature of oxides of the elements ?
A metal M forms as oxide having the formula M2O3. It belongs to third period. Write the atomic number and valency of the metal.
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 non-metal
For the main group of the periodic table, the metallic properties of the elements vary approximately with their position as shown in the table.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| H | He | ||||||
| A | B | ||||||
| C | D |
Will the most non-metallic element be found at A,B,C or D ?
In the third period, which is the most metallic and most non-metallic element?
Explain
Group 17 elements are non-metals, while group 1 elements are metals.
If an element is in group 7 is it likely to be metallic or non metallic in character?
Within a group, where would you expect to find the element with the greatest metallic character.
Arrange the following elements in order of their decreasing metallic character.
Na, Si, Cl, Mg, Al
The tendency of an element to form anion is the ______ character of that element.
Write an Explanation.
Electronegativity
Choose the odd one out and write the reason:
Choose the odd one out and write the reason:
