Answer
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
What is it that you’re asking for?
"<span>They have two electrons in the outer shell. </span>Alkali metals<span> are soft, low density </span>metals<span>that react vigorously with water to form hydrogen. They only have one electron in it's outer shell. </span>Alkali-earth metals<span> are low density hard </span>metals<span> that react less vigorously with water. They have two electrons in the outer shell."
(Taken from a source)
Hope this helped!
:)</span>
The answer is C.
Smoke is defined as a colloid, which is any substance consisting of particles substantially larger than atoms or ordinary molecules. It is a suspension of solid and or liquid particles in the air.