Atomic numbers of a few elements are given below : 10, 20, 7, 14 (a) Identify the elements. (b) Identify the group number of these elements in the Periodic Table. (c) Identify the period of these elements in the Periodic Table. (d) What would be the electronic configuration for each of these elements ? (e) Determine the valency of these elements.

Atomic numbers of a few elements are given below : 10, 20, 7, 14 (a)

1.	Atomic numbers of a few elements are given below : 10, 20, 7, 14 (a) Identify the elements. (b) Identify the group number of these elements in the Periodic Table. (c) Identify the period of these elements in the Periodic Table. (d) What would be the electronic configuration for each of these elements ? (e) Determine the valency of these elements.
Answer» Solution :(a)`{:("Atomic number","Element"),(10,"Neon(Ne)"),(20,"Calcium(CA)"),(7,"NITROGEN(N)"),(14,"Silicon(Si)"):}` (b)`{:("Atomic number","Group number"),(10,18),(20,2),(7,15),(14,14):}` (c)`{:("Atomic number","Periodic number"),(10,2),(20,4),(2,2),(14,3):}` (d)`{:("Atomic number","Electronic CONFIGURATION"),(10,2","8),(20,2","8","8","2),(7,2","5),(14,2","8","4):}` (e)`{:("Atomic number","Valency"),(10,0),(20,2),(7,3),(14,4):}`