The atomic numbers of three elements A, B and C are given below : (i) Which element belongs to group 18 ? (ii) Which element belongs to group 15 ? (iii) Which element belongs to group 13 ? (iv) To which period/periods do these elements belong ? Lakhmir Singh Chemistry Class 10

The atomic numbers of three elements A, B and C are given below : (i

1.	The atomic numbers of three elements A, B and C are given below : (i) Which element belongs to group 18 ? (ii) Which element belongs to group 15 ? (iii) Which element belongs to group 13 ? (iv) To which period/periods do these elements belong ? Lakhmir Singh Chemistry Class 10
Answer» INERT GASES BELONG to 18 GROUPS