Advertisements
Advertisements
प्रश्न
State the property trends in general of elements on moving from left to right in a period of the periodic table.
Advertisements
उत्तर
Property trends of elements from left to right in a period:
- Number of electron shells remains the same.
- Valence electrons increase by one.
The transition from metallic to non-metallic character increases. - Size of atom decreases.
APPEARS IN
संबंधित प्रश्न
How many groups and periods are there in the modern periodic table?
Write the number of periods the Modern Periodic Table has. State the changes in valency and metallic character of elements as we move from left to right in a period. Also state the changes, if any, in the valency and atomic size of elements as we move down a group.
List any two properties of the elements belonging to the first group of the modern periodic table.
Arrange the following elements in the increasing order of their metallic character:
Mg, Ca, K, Ga
Rewrite the following statement after correction, if necessary:
Elements in the same period have equal valency
Nitrogen (atomic number 7) and phosphorus (atomic number 15) belong to group 15 of the periodic table. Write the electronic configuration of these two elements. Which of these will be more electronegative? Why?
Choose the most appropriate answer from the following list of oxides which fit the description.
An amphoteric oxide.
Name and state the following with reference to the elements of the first three periods of the periodic table.
Non-metallic elements present in Period 3 of Groups 15 and 16.
Name or state following with reference to the elements of the first three periods of the periodic table.
A metalloid in period 2 and in period 3.
Select the correct answer from the options given below.
It is a period having elements from atomic no. 11 to 18.
