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प्रश्न
In Period 3, the most metallic element is ______.
पर्याय
sodium
magnesium
aluminium
उत्तर
In Period 3, the most metallic element is sodium.
APPEARS IN
संबंधित प्रश्न
Answer the following in respect of element `31/15 P `
What is its valency?
Give the trend in metallic character:
(i) across the period left to right
An element X belong to 3rd periods and group II of the periodic table state:
whether it is a metal or a non-metal.
Write scientific reason.
Metallic character goes on decreasing while going from left to right in a period.
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 tendency of an element to form anion is the ______ character of that element.
On moving down the group metallic character increases.
Write an Explanation.
Electronegativity
The metal which is hard and has a high melting point and used in filaments of electrical bulbs is ______
Metals are good ______ because they are electron ______.
