There are 7 atoms in sodium sulfate altogether: 2 sodium, 1 sulfur and 4 oxygen. Of these 7, 4 of them are oxygen. So 4/7 * 100 = 57.1% of the atoms are oxygen.
The atomic mass of oxygen (8 protons + 7 neutrons) is 15.For finding the atomic mass of any element, we have to get sum of number of protons & number of neutrons. Atomic Mass (A) : p+n.p = no. of protons.n = no. of neutrons.
Fluorine (F) with 7 outermost electrons
7
The difference between Oxygen - 15 and Oxygen - 16 is that of Isotope. Oxygen's atomic number is 8 as it contains 8 proton but the neutron number may vary in order to form an isotope, the oxygen found in the air is 98 percent oxygen 16, the rest is oxygen 15. Oxygen 16 = 8 protons, 8 neutrons, 8 electrons. 16 is the mass number which is equal to the (number of proton + number of neutrons) Oxygen 15 = 8 protons, 7 neutrons, 8 electrons. 15 is the mass number which is equal to the (number of proton + number of neutrons) Oxygen 15 is known as the "Isotope" of Oxygen 16.
The main energy supply to the heart is oxygen supplied by the coronary arteries. For more information contactHeartquestionsanswerd@hotmail.co.uk To get ANY heart question answerd. Use this information as a guide only I am NOT a doctor but I know a lot about the heart.
5-to-7 percent
In the leopard frog heart, the right atrium carries oxygen poor blood and the left atrium carries oxygen rich blood.
Use a calculater. Answer = 62.93
7 percent is 7 percent. 7 percent of 35,000 is 2450.
97%
7 percent of 7 percent = 49/10000 or 0.00497% of 7%= 7/100 * 7/100= 49/10000= 0.0049
7 percent of (8.15 percent) = 0.005705
7 of out 20 in percent is (7/20)*100 = 35 percent.
7 percent or 7% means 7 out of a 100
That is 7 percent or 7%
7%