Kelly is crime scene investigator. She is examining a stain that she suspects is blood. Presumptive tests indicate blood, so she is choosing which confirmatory test to use. What are the disadvantages of confirmatory tests? Kelly considers using the test to confirm whether the stain is blood; however, she knows that it could be unreliable because the stain is on a leather boot. Kelly considers using the test, but she believes the stain may be about 35 years old, and this test is not as reliable for stains over 20 years.

Blank one: Kastle-Mayer, Teichmann, or Takayama
Blank two: Kastle-Mayer, Teichmann, or Takayama

h let me think

the electronic configuration of an atom with eight electrons is 1s²2s²2p⁴. the orbital diagrams are shown in the figure.

as per the hunds rule:

1. electrons tend to avoid being in the same orbital as per as practicable.

2. electrons in different orbitals of the same energy will have their spin parallel.

this can be illustrated from the multiplicity of the orbitals of the atom. as there are four electrons in the p orbital and p orbital has 3 sub-shells. the electrons can be fed in different ways as shown in the figure but the correct orbital diagram will be as per the hunds rule.

put the answers   and i could answer.