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प्रश्न
State whether the following statement is true or false
All members of zero group are non metals.
विकल्प
True
False
उत्तर
True
APPEARS IN
संबंधित प्रश्न
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.
An element X belong to 3rd periods and group II of the periodic table state:
whether it is a metal or a non-metal.
iii) Observe the figure and answer the following questions.
a) Identify the block shown by box A and write an electronic configuration of any one element of this block.
b) Identify the block of element denoted by letter B and write its period number.
Among the elements of the second period, Li to Ne, pick out the element that is the most reactive metal
In the third period, which is the most metallic and most non-metallic element?
Select the correct answer
Configuration of an element is 2, 8, 1. Which of the following statement is true?
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.
Write scientific reason.
The non-metallic character increases while going from left to right in a period.
An element has atomic number 17. To which group, the period does it belong? It is metal or non-metal?
