I assume you mean 'structure' :)
Metals undergo metallic bonding. In this type of bond, metal atoms loose their valence electrons (that become delocalised). This type of bonding creates a regular layered lattice with positive metal ions and a sea of delocalised electrons floating between the layers. These layers slide over each other and results in metals being both malleable and ductile.
Hope it helps!
Answer:
STM = Scanning Tunneling Microscope
Explanation:
STM and its significance
<em>It is the microscope that can take </em><u><em>images of the particles at the atomic scale</em></u><em>.It opens the door to under the </em><u><em>nano-scale process .</em></u>
<u><em>In 1986 Heinrich Rohrer won the nobel prize for its discovery</em></u>
<u><em>It doesn't magnify images like other microscopes .</em></u>
<u><em>It uses the principle of quantum tunneling. </em></u>
Working :
<em>A fine needle like tip is scanned on the surface of electrically conducting sample. When voltage is applied , the electron jumps between the suface of the tip and sample . This flow of electron is detected by the detector. It can resolve the image upto 0.000000001 m or 1 nm (nanometer)</em>
Uses :
- The STM is used in molecular science called nanotechnology to study nano phenomenon
- Its prototype AFM are used to Study wide range of Nano-particles
- STM is used in atomic deposition of metals with required scientific pattern, which can be used as nanodevices themselves.
- It is used to study electron-friedel oscillation on the surface of metals.
- It is used to modify sample surface.
Answer:
We are not able to create a fusion reactor on Earth because fusion energy production is not based on a chain reaction, as is fission. Plasma must be kept at very high temperatures with the support of external heating systems and confined by an external magnetic field.
Explanation:
Answer:
Meiosis is a process where a single cell divides twice to produce four cells containing half the original amount of genetic information. These cells are our sex cells – sperm in males, eggs in females. ... These four daughter cells only have half the number of chromosomes? of the parent cell – they are haploid.
Explanation:
Basically haploid cells