What I can do to conserve energy is always turning off the lights when I don’t need them, and not watching alot of Tv and go outside.
The electron configuration for a atom whose element has a atomic number of 8 (Oxygen) is 2,6
It would be a positive charge because it lost two electrons, if the charge was neutral it would be the same amount of protons and electrons, if the charge was negative the electrons would be 20 instead of 18. So in this case it is positive.
The purpose of the uninoculated control tubes used in this test is that two uninoculated control tubes are needed to show the results of the medium in both aerobic and anaerobic environments. It is used to show it is sterile and also as a color comparison, used also to show that the medium remains green under both conditions.
