state gov OSSSC RI, ARI, AMIN, SFS, ICDS Supervisor Combined Mock Test 2023-25 General Science Chemistry
In the modern periodic table, which of the two periods contain 8 elements each?
1
2 and 3
2
1 and 2
3
4 and 5
4
3 and 4
In the modern periodic table, which of the two periods contain 8 elements each?