6) Find three numbers in G.P. such that their
sum is 21 and sum of their squares is 189.
.
Answers
Answered by
0
Answer:
A group of elements in the periodic table starts with Boron and ends with Thallium.
(i) Which element has the most metallic character?
(ii) If electronic configuration of Aluminum is 2, 8,3 , how many electrons are there in
the outermost shell of Thallium.
Similar questions