Answer:
Name the element: Beryllium
Number of shells: 4
Valence electrons: 2
Explanation:
BPA, or bisphenol A, is in most plastics and it is toxic to humans because it can bind to the estrogen hormone and greatly alter your body's natural functions from there. It can also bind to your thyroid hormone.
Answer:
0.21mol Ar (g)
Explanation:
To convert from litres to moles at STP we must divide the amount of litres by 22.4.
4.7 / 22.4 = 0.21mol Ar (g)
First one is cell Membrane and the second one is cell Wall
Answer:
P2I4 is otherwise known as "<em>Diphosphorus Tetraiodide</em>"