Answer:
8
Explanation:
The element must have a complete octet in order to be unreactive.
Such an unreactive element must be a noble gas/ inert gas/ or group O element.
Most elements on the periodic table try to mimic them.
This configuration makes the group O elements unique and unreactive.
What drives reactively is ability of an atom to lose or gain electron in order to achieve a stable configuration such as that of group O elements.
<span>A) Glucose moving down a concentration gradient.</span>
The team of Hunt had designed an experiment to test the hypothesis of the effect of BPA on mice. The daily doses of BPA was administered into the female groups of mice for 3, 5 and 7 days and then the genetic abnormalities which occured during meiosis, chromosome division or egg formation were studied.
The steps followed in this experiment in order are as follows:
- Observation- The mice eggs in plastic cages when washed using harsh soap showed problems during the cell division stage which caused genetic abnormalities.
- Question- If the bisphenol A from the plastic affected mice in the damaged cages.
- Hypothesis- If the frequency of the genetic abnormality was affected by the exposure to bisphenol A.
- Prediction- The level of exposure of mice to bisphenol A was proportional to the increase in genetic abnormalities.
Transpiration, Evaporation, Condensation, Precipitation
