5. (a) Name an element whose properties were predicted
on the basis of its position in Mendeleev's periodic
table.
(b) Name two elements whose atomic weights were
corrected on the basis of their positions in Mendeleev's
periodic table.
(c) How many elements were known at the time of
Mendeleev's classification of elements ?
Answers
Answered by
1
Answer:a.galium and germanium
b.Be,Pt
c.63 elements were known,nobel gas were not discovered.
Explanation:
Similar questions