Lithium (Li) is the strongest reducing agent. Since I.P. decreases down the group we would expect that Li will have the lowest reducing power in that group. But since its hydration energy is very high and which in fact decreases down the group, Li will have highest reducing power.
Related Questions:(1) What are the Amphoteric metals ? gives Examples.
(2) Name of total metalloids present in periodic table ?
(3) Total numbers of elements which are liquid at normal temperature is ?
(4) What is Mendeleev's periodic table ? give important features and draw back of Mendeleev's table.
(5) What is atomic density ? give the periodicity of atomic density in periods and groups.
(6) What is atomic volume ? and what is periodicity of atomic volume in groups and periods ?
(8) The electron affinity of sulphur is greater than oxygen. Why?
(9) The first ionization energy of carbon atom is greater than that of boron atom, whereas reverse is true for the second ionization energy. Explain.
(10) The electronegativities of B, Al, Ga are 2.0, 1.5, 1.6 respectively. The trend is not regular. Explain.
(11) Li2CO3 decomposes on heating but other alkali metal carbonates don’t. Explain.
(12) Of all noble metals, gold has got a relatively high electron affinity. Explain.
(13) Ionization energy of Boron is smaller than Beryllium even though effective nuclear charge is higher?
(14) What are the increasing order of ioni radii of first group elements in water ?
No comments:
Post a Comment