Oxygen has a total of three isotopes oxygen-16, oxygen-17, and oxygen-18. with their a. m.u. being 15.995, 16.999, and 17.999 respectively. the percent abundance for oxygen-17 is 0.04% and oxygen-18 is 0.2%. find the percent abundance for oxygen-16?

The percentage abundance of oxygen-16 isotope is 99.76 %

Explanation:

We are given:

Three isotopes of oxygen are there, O-16, O-17 and O-18

Mass of Oxygen-16 isotope = 15.995 amu

Mass of Oxygen-17 isotope = 16.999 amu

Mass of Oxygen-18 isotope = 17.999 amu

Percentage abundance of Oxygen-17 isotope = 0.04 %

Percentage abundance of Oxygen-18 isotope = 0.2 %

We know that:

Percentage abundance of all isotopes together is 100 %

So, Percentage abundance of Oxygen-16 isotope = [100 - (0.04 + 0.2)] = 99.76 %

Hence, the percentage abundance of oxygen-16 isotope is 99.76 %

atomic number of carbon is 6

electronic configuration of carbon is 1s²2s²2p²

orbital diagram of carbon is as shown here in the image.

2h2o2--> 2h2o + o2

this reaction is of the spontaneous decomposition of hydrogen peroxide down into water and oxygen.

add 2 molecules of hydrogen peroxide and 2 molecules of water. since oxygen is naturally diatomic, the total number of atoms of each element is now the same on both sides of the equation so it is balanced.

this may not be entirely correct but let me know.