To work this out you do 400÷20=20
Answer:
the atoms have more valence electrons
Explanation:
Answer
Using the law of reflection—the angle of reflection equals the angle of incidence—we can see that the image and object are the same distance from the mirror. This is a virtual image, since it cannot be projected—the rays only appear to originate from a common point behind the mirror.
Explanation:
Hope this helps someone
Proteins make up many many important structures in our cells ( ex : receptors , Enzymes , integral proteins and so on )
