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प्रश्न
The tendency of an element to form anion is the ______ character of that element.
पर्याय
nonmetallic
basic
metallic
acidic
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उत्तर
The tendency of an element to form anion is the nonmetallic character of that element.
Explanation:
Nonmetallic character is defined by an element’s ability to gain electrons to achieve a stable electronic configuration, thereby forming negative ions, known as anions. Elements on the right side of the periodic table generally exhibit this behaviour due to their high electronegativity and high ionisation enthalpy.
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संबंधित प्रश्न
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?
Name any five periods properties.
Give the trend in metallic character:
down the group top to bottom.
Explain the following:
Group 17 elements are strong non-metals, while group 1 elements are strong metals.
Complete the following sentences
Moving across a ………….. of the periodic table the elements show increasing ………………..character (group, period, metallic, non-metallic).
Choose the correct answer.
An alkaline earth metal
(i) Lead
(ii) potassium
(iii) calcium
(iv) Copper
Write a scientific reason.
Metallic character goes on decreasing while going from left to right in a period.
In Period 3, the most metallic element is ______.
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 | 13 | 14 | 15 | 16 | 17 | 18 |
| H | He | ||||||
| A | B | ||||||
| C | D |
- Will the most metallic element be found at A, B, C or D?
- Will the most non-metallic element be found at A, B, C or D?
State whether the following statement is true or false
All members of zero group are non metals.
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 :
Use the information given in (a) to (h) to identify the substances P to W selecting your answers from the given list.
| List | ||
| Calcium | Oxygen | Copper (II) Oxide |
| Carbon | Calcium hydroxide | Copper (II) Nitrate |
| Lead (II) Oxide | Hydrogen chloride | Chlorine |
| Lead (II) Nitrate | Calcium Oxide | Ammonium chloride |
- P is white solid. When heated produces white fumes (sublime).
- P and R on warming produce an alkaline gas.
- On adding water to T, heat is evolved and R is formed.
- Q burns brightly in the air to form T.
- When S is heated, it gives off brown fumes and leaves a black residue of U.
- A solution of S is formed by warming U with dilute nitric acid.
- V is a gaseous non-metallic element that reacts with hydrogen to form W.
- A solution of W will neutralize the solution of R.
The metallic character of the element decreases moving across a period from left to the right.
Which of the following sets of atomic numbers belong to that of alkali metals?
Three elements B, Si and Ge are
Choose the odd one out and write the reason:
Arrange the following as per instruction given in the bracket.
Cs, Na, Li, K, Rb (increasing metallic character)
Metals are good ______ (oxidising agents/reducing agents) because they are electron ______ (acceptors/donors).
