When the oxygen atoms in ozone layer were destroyed by ultraviolet radiations the individual oxygen atoms will make bond with each other and form paired oxygen molecules again to form ozone.
What is the ozone layer?
Ozone layer has a high concentration of ozone (O3) in comparison to the rest of the atmosphere, although it is still low in comparison to other gases in the stratosphere.
The ozone layer contains less than ten parts per million of ozone, whereas the normal ozone concentration in the Earth's atmosphere is around 0.3 parts per million. The ozone layer is mostly found in the lower stratosphere.
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Answer: Tungsten. This requires a lot of energy. Molecules are held together by covalent bonds, which are strong.
The answer is Selenium.
Hope that helps.
2 atoms of Al
3 of S
4*3=12 of O
so total= 17
Answer:
both are physical properties
Explanation:
A is about it's malleability and B is about it's density. These are physical properties
