Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test General Science Chemistry Periodic Table
With the increase in atomic weights, the melting points of the alkali metals:
1
do not show a definite trend
2
decrease
3
remain constant
4
More than one of the above
5
None of the above