Potassium should have largest atomic radius.......
'cause on moving to right, attractive force between nucleus and electrons increases and causes shielding effect, due to which atomic radius get smaller
Answer:
The natural abundance of the 35.0 amu isotope is 77.5%, and the natural abundance of the 37.0 amu is 22.5%
Explanation:
- The atomic weight of an element is the weighted average between each of the weight of isotopes.
- Then the natural abundance of 35.m amu isotope would be <em>x</em>, and for the other would be 1-<em>x.</em>
- According to the definition of the atomic weight for this case:
, then solving for x, it is obtain that the fraction for 35 amu isotope is 0.775 (77.5%), and for 37 uma isotope is 0.225 (22.5%).
In this case you can use the Picket Fence method if you've heard of it, or just parentheses and math.
10mol KClO3 (3mol O/1mol KClO3) = 30mol O