Question

how to calculate the valency of uranium plz explain with Bohr theory​

Answer 1

Answer:

Answer Expert Verified. Valency= The maximum oxidation state shown by the element or in other words,no of electron in outermost shell. Hence its valency is given by 6. # As we go down the group inert pair effect take place.

Answer 2

Explanation:

Electronic configuration of Uranium: 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 5f3 6d1 7s2

Or it can also be represented as: [Rn] 5f3 6d1 7s2

Valency= The maximum oxidation state shown by the element or in other words,no of electron in outermost shell.

# No of electrons in outermost orbit= 3+2+1=6 Hence its valency is given by 6.

# As we go down the group inert pair effect take place. Inert pair effect: reduction of the oxidation states by two units as we go down the group, because the 2e in s block element refuse to take part in chemical reaction.

There it shows a valency of 4

NOTE:

1 valency is taken as the no of electron in its outermost "shell"/orbital. 2.valency is not the number outermost electron in "subshell"

Shell and subshell there is a difference..!!!!