Over a million students use our free study notes to help them with their homework
Gravitational, electromagnetic, weak and strong.
pi/2 and -pi/2
The reactivity increases. Group 1 are the alkali metals so they react by losing their valence electrons. Caesium is more reactive because it gives up its electrons more readily. It has more inner shells s...
Resistance can be thought of as the amount of distruption to the flow of electrons. If we look at the equation for resitivity:R=kl/A,where k is the resistivity of the material (and is dependant on the mat...
Querida amiga: Estoy muy contento (adjetive) de que hayas decidido visitar la ciudad de Londres. El tiempo por aquí es bastante lluvioso (weather condition), pero cuando ...
←
36
37
38
39
40
→
Internet Safety
Payment Security
Cyber
Essentials
