The average atomic mass of the element is 204.40 amu
<h3>Average atomic mass and isotopic mass</h3>
- The average atomic mass of an element is the average mass of the atom of that element calculated from the isotopic masses of the atoms of that element and their percentage abundances
- Isotopic mass is the mass of each isotope of that element
<h3>Calculation of average atomic mass</h3>
Average atomic mass = sum of isotopic mass * abundance of each isotope
Average atomic mass = 202.99 * 29.524% + 70.476% * 204.99 amu.
Average atomic mass = 204.40 amu
Therefore, the average atomic mass of the element is 204.40 amu
Learn more about average atomic mass and isotopic mass at: brainly.com/question/11096711
The answer is chemical weathering The physical breakup of rocks without any changes in their chemical composition is chemical weathering.
I think each oxygen atom can share two electrons with the other so that each atom has eight valence electrons. The oxygen atoms forms each two covalent bonds since two pairs of electrons are shared in an oxygen molecule. The sharing of electrons helps the atom to achieve stable structures.
Answer:
5.97 mol
Explanation:
To find the number of moles when given the mass of a substance, we divide the mass of the sample by its molar mass.
so, we get,
nN203 = 454 g / 76.01 g /mol
= 5.97 mol
I think the answer most be d