<span>Atomic number of magnesium is 12. That implies that in ground state magnesium has 2 electrons in the first level, 8 electrons in the second level, and 2 electrons in the third level. That is represented by 2 8 2. That the atom is in an excited state means that one electron (at least) is a upper level than where it is in grounded state. That situation is represented by the option (1) 2 7 3, where one electron from the second level has been promoted to the third level.</span>
The net ionic equation of the reaction is:
- Pb²⁺aq) + 2 I(aq) → PbI2(s)
<h3>What is a net ionic ionic equation?</h3>
A net ionic equation is an equation which shows only the ions that are involved in the formation of a product in the reaction as well as the product of the reaction alone. Spectator ions are omitted.
The net ionic equation of the reaction is given below:
Pb²⁺aq) + 2 I(aq) → PbI2(s)
In conclusion, a net ionic equation does not show spectator ions.
Learn more about net ionic equation at: brainly.com/question/19705645
#SPJ1
Electromagnetically decreases when the elements are considered in order of increasing atomic number.
In this problem they were asking regarding group 17.
Final answer: Electromagnetically
The answer would be, "Electrons".
Density of the vinegar is higher than the density of the oil.
Explanation:
Density of the vinegar is higher than the density of the oil. The consequence of this is that the oil will be the top layer in the pitcher while the vinegar is at the bottom layer in the pitcher.
When mixing oil and vinegar will not produce a mixture because the oil contains non-polar molecules while vinegar is a solution of acetic acid in water and both of them are polar molecules.
Learn more about:
liquids with different densities
brainly.com/question/9490207
#learnwithBrainly
