Two representations of the distribution of electrons in the potassium atom are shown.

model 1 model 2
1s22s22p63s23p64s1

which model is useful in showing the reactivity of potassium?
neither model is able to show the reactivity of potassium.
model 1 because it shows an electron in the 4s orbital.
model 2 because it shows an electron in the outermost ring.
both models because each shows an electron in the outermost shell.

Answer : Option D) Both the models because each shows an electron in the outermost shell.

Explanation : It is clearly seen that the model 1 and model 2 has the electronic configuration which is same for potassium.

The reactivity in potassium is seen because of the one electron present in the outermost valence shell.

The electronic configuration of potassium is

Therefore, both the models are able to show the reactivity of the potassium. Hence, the answer is option D.

fire could start, buildings collapsing, and ash falling from the sky.

explanation:

this is because the buildings or plants could catch on fire and the buildings would most likely collapse. lastly ash would fall because all the burning would cause ash to fall from the sky.

hope this .

it is important to conserve water because there is very limited amount of freshwater here on earth and if we are not smart about how we use it we will only be runnning out of our supply faster than neccessarry.