There is a total of 6 half lives that need to take place.
ONE HALF LIFE = 200
TWO HALF LIFES = 100
THREE HALF LIFES = 50
FOUR HALF LIFES = 25
FIVE HALF LIFES = 12.5
SIX HALF LIFES = 6.25
The answer is 6.25g
Answer:
the acceleration of A is three times that of B
Alkali metal
Explanation:
In general, an alkali metal will be more reactive than an alkaline earth metal in the same period.
What determines reactivity of metals?
The electropositivity of metals determines how reactive they are.
- Electropositivity or metallicity is a measure of the tendency of atoms of an element to lose electrons.
- It is closely related to ionization energy and the electronegativity of an element.
- The lower the ionization energy of an element, the more electropositive or metallic it is
- Also, the more reactive it will be because, it can lose electrons more readily.
- Across a period from left to right, electropositivity decreases and from top to down a group, it increases.
- Since alkali metals are more electropositive than alkali earth metals, they are more reactive and readily lose their only electron.
- This is why the most reactive metal is francium found in the lower left corner on the periodic table.
- For non-metals, electronegativity is the most important factor.
Learn more:
Alkali metals brainly.com/question/6324347
Electronegativity brainly.com/question/11932624
#learnwithBrainly
Answer:
or
Explanation:
We know that Gauss's law states that the Flux enclosed by a Gaussian surface is given by
Here , E is electric field and S is surface are and q is charge enclosed by the surface and e is electrical permeability of the medium.
Here the Gaussian is of radius r<R so area of surface is
Also, charge enclosed by the surface is
therefore,
Here Q is total charge,
Insert values in Gauss's law
Rearrange them
on further solving
This is the required form.
The temperature<span> remains constant as long as the </span>phase change<span> remains incomplete.</span>
