Importance<span> of </span>Valence Electrons<span>. When two atoms approach each other and react with each other, it is their outer shells that come into contact first, and it is therefore the </span>electrons<span> in their outer shells that are normally involved in any chemical reaction.</span>
Zinc is an example of a pure metal with a hexagonal close-packed arrangement.
~Glad to help ^^
Options are as follow,
1) Flashes
2) Skips
3) Stretches
<span>4) Jumps
</span>
Answer:
Option-3 (stretches) is the correct answer.
Explanation:
The best analogy which suits a chemical bond is the stretching of chemical bonds. Remaining verbs doesn't explain the property of chemical bond. For example, the chemical bonds did not flashes, neither they skip or jump.
The chemical bonds can stretch and bend. As predicted from IR spectroscopy, different bonds can stretch and bend at different energies. The stretching of bonds require more energy while, bending of bonds require less energy.
Because if you have a liquid then you need a glass to keep it together and when it is a solid it is already together so you don't need to do anything