Explanation:
The first one is series circuit as it is joined one after another while the second one is parallel circuit joined in a parallel way. Ok the line just like this --------- is the wire , the sign like this | | is the battery and the circles with cross are the bulbs
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1s2,2s2.2p6,3s2,3p6,3d4,4s2
The final step in a typical titration, that is here an acid base one would be to finally find the concentration of your unknown substance whether that be the acid or the base. The other steps are used before this to come to the correct calculation and conclusion.
Answer:
The average atomic mass of boron is found to be
10.80
Explanation:
also u answered it urself
D & e represent the same element