Answer:
any of the set of metallic elements occupying a central block (Groups IVB–VIII, IB, and IIB, or 4–12) in the periodic table, e.g., iron, manganese, chromium, and copper. Chemically they show variable valence and a strong tendency to form coordination compounds, and many of their compounds are colored.
Explanation:
Answer:
407pm is the edge length of the cubic unit cell
Explanation:
In a Face-centered cubic unit you can use Pythagoras theorem to relate edge length with atomic radius (As you can see in the picture), thus:
e²+e² = (4r)²
2e² = 16r²
e = √8 r
If the atomic radius of the atom is 144pm:
e = √8 ×144pm
e = 407ppm
407pm is the edge length of the cubic unit cell
Answer:
Solenoid having iron core.
Explanation:
Solenoid having iron core will pick up more paperclips because this solenoid will produce more electromagnetism. Solenoid having no iron core produces lower magnetic field as compared to solenoid having iron core. The presence of iron in the core of solenoid increases magnetic field which leads to increase in electromagnetism so that's why the solenoid with iron core attract more paperclips as compared to no iron core solenoid.
