I have written it out and explained it. I hope it helps! Here:
Answer:
Physical Change. Physical changes are changes in which no bonds are broken or formed. This means that the same types of compounds or elements that were there at the beginning of the change are there at the end of the change.
<h3>Answer:</h3>
Potassium has the largest atomic radius.
<h3>Explanation:</h3>
Using periodic table trends one can easily compare the atomic radii of elements. The trends in atomic radii are as follow,
Trends in Groups:
Moving from top to bottom along the groups the atomic radii increases because as you move from top to bottom the number of shells increases hence, the distance of valence electrons from nucleus also increases and therefore, atomic radius increases.
Trends is Periods:
Moving from left to right along the periods the atomic radii decreases. This is because the number of protons and electrons increases but the the valence shell remain the same hence, causing more nuclear charge and more attraction between the valence electrons and nucleus.
<h3>Result:</h3>
Potassium, Calcium, Cobalt and Nickle all are present in same period. Potassium present at the extreme left will have greater atomic radii of 0.227 nm while Co and Ni at the middle of period will have atomic radii of 0.125 nm each. While, the atomic radius of Calcium next to K is 0.197 nm.
1 calorie is needed to raise 1 g of water 1 °C.
350 * 22 = 7700 calories
Answer:
im sorry but this question doesnt make sense
Explanation:
