Atomic number of a few elements are given below:
10, 20, 7, 14
- Identify the elements.
- Identify the Group number of these elements in the Periodic Table.
- Identify the Periods of these elements in the Periodic Table.
- What would be the electronic configuration for each of these elements?
- Determine the valency of these elements.
Answer:
- Elements — Neon (Ne), Calcium (Ca), Nitrogen (N), Silicon (Si)
- Group — 18, 2, 15, 14
- Period — 2, 4, 2, 3
- Electronic configuration— (2, 8); (2, 8, 8, 2); (2, 5); (2, 8, 4)
- Valency — 0, 2, 3, 4