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प्रश्न
Electronegativity is the metallic property of an element.
पर्याय
Right
Wrong
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उत्तर
Electronegativity is the metallic property of an element- Wrong
संबंधित प्रश्न
Arrange the following as per the instructions given in the brackets:
Na, K, Cl, S, Si (increasing order ionization energy)
Answer the following in respect of element `31/15 P `
What is its valency?
Metallic character and non-metallic character are periodic properties discuss ?
Explain the following:
Metallic character of elements decreases from left to right in a period while it increases in moving down a group.
Write a scientific reason.
Metallic character goes on decreasing while going from left to right in a period.
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?
In the third period, which is the most metallic and most non-metallic element?
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.
Identify the metallic oxide which is amphoteric in nature.
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.
Right or wrong sentence.
Silicon is a metallic element.
Write an explanation.
Electropositivity
The lightest liquid metal is ______
Which of the following metal (s) do not react with water?
Choose the odd one out and write the reason:
Metals are good ______ because they are electron ______.
Arrange:
Be, Li, C, B, N, O, F (in increasing metallic character).
