Actually, no human being can go without oxygen for 4 minutes and be expected to live
Exactly 18 minutes in 18 minutes.
There are 60 minutes in one hour. Multiply 18 hours by 60 minutes and you get 1,080 minutes in 18 hours.
No. Oxygen always has 8 protons. Oxygen 18 has 8 protons and 10 neutrons (8 + 10 = 18)
Oxygen gets from the lungs to the brain via the bloodstream in around 15-18 seconds. The oxygenated blood leaves the lungs, travels through the pulmonary veins to the left side of the heart, and is then pumped out to the body, including the brain, via the arterial system.
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18 minutes = 1,080 seconds (multiply minutes by 60 to get seconds).
1 hour = 60 minutes so 9 hours = 9*60 = 540 minutes. So 9 hours : 18 minutes = 540 minutes : 18 minutes = 540 : 18 = 30 : 1
As the name would suggest, the mass of Oxygen-18 is 18.
The mass number for oxygen-18 is 18. This is calculated by adding together the number of protons and neutrons in the nucleus of an oxygen-18 atom. It is a stable isotope of oxygen with 8 protons and 10 neutrons.
No, oxygen-17 and oxygen-18 are different isotopes of oxygen. They differ in the number of neutrons each atom contains. Oxygen-17 has 8 protons and 9 neutrons while oxygen-18 has 8 protons and 10 neutrons.
There are 18 times 60 = 1080 minutes
They Are Isotopes of oxygen!