- groups and periods
- Atomic size
- Metallic and Non-metallic Properties
Shaalaa.com | Periodic Classification of Elements part 7 (Trends in periods 1)
Series 1: playing of 3
to track your progress
Fill in the blank:
The formulae of chloride of metal M is MCl2. The metal M belongs to ……………. group.
The atomic masses of three elements A, B and C having similar chemical properties are 7, 23 and 39, respectively.
- Calculate the average atomic mass of elements A and C.
- Compare the average atomic mass with atomic mass of B.
- What could the elements A, B and C be?