Answer:
electron-electron repulsion
Explanation:
When electrons add into valence shell of neutral elements, the element assumes a negative oxidation state. With this, the number of electrons having (-) charges will be larger than the number of protons having positive (+) charges. As a result, the extra electrons repel one another (i.e., like charges repel) and a larger radius is the result.
In contrast, when cations are formed, electrons are removed from the valence level (oxidation) producing an element having a greater number of protons than electrons. The larger number of protons will function to attract the electron cloud with a greater force that results in a contraction of atomic radius and a smaller spherical volume than the neutral unionized element.
To visualize, see attached chart that shows atomic and ionic radii before and after ionization of the elements.
The answer is parasite. A parasite must have a host to stay alive.
Alkali metals. Hope this helps
Answer:
Exit velocity of air is 96.43 m/s.
Explanation:
Given that
For air
Now from first law of thermodynamics for open system at steady state
For diffuser
We know that
So the exit velocity of air is 96.43 m/s.
