Insulation or insulating. :) Hope that helps!
When a light wave encounters an object, they are either transmitted,reflected,absorbed,refracted,diffracted, or scattered depending on the wave
Answer:
C. Their natural predator was gone.
The correct answer is
1
Potassium has 1 valence electron. In fact, it is in the same group of sodium in the periodic table. But sodium has 1 valence electron, since it is in the 11th position, because the first two elements of the periodic table fills the first orbital, while the elements from 3 to 10 fill the second orbital (made of 8 electrons), so the 11th element (sodium) has 1 valence electron.