Question

List the three characteristics of elements which have periodic change in a period

Answer 1

Hey Friend,

Periodicity in properties (Trends) means occurrence of characteristic properties of elements at definite intervals in the modern periodic table when the elements are arranged in the increasing order of their atomic number.

Following are the trends in periodic properties across a period - 

1. Atomic size - decreases 
2. Ionization Potential - increases
3. Electron Affinity - increases
4. Electro-negativity - increases
5. Non-metallic character - increases
6. Metallic character - increases

Hope it helps!

Answer 2

Answer:

Periodicity in properties (Trends) means occurrence of characteristic properties of elements at definite intervals in the modern periodic table when the elements are arranged in the increasing order of their atomic number.

Following are the trends in periodic properties across a period -  

1. Atomic size - decreases  

2. Ionization Potential - increases

3. Electron Affinity - increases

4. Electro-negativity - increases

5. Non-metallic character - increases

6. Metallic character - increases