Answer:
i'd say that the answer is b
Explanation:
Answer:
278pm
Explanation:;
Given that:
density of Ca = 1.54g/
molar mass of Ca= 40.08 g
We know that in face centered structure, there are four atoms in one unit cell
So, In unit cell, mass of 1 atom = molar mass/ Avogadro's Number
= 40.08/ (6.022*10^23)
= 6.66 * 10^ -23 g/atom
For face centered structured Calcium,
mass of 4 atoms= 6.66 * 10^ -23 * 4
= 2.66* 10^ -22 g
As we know,
Volume = mass/density
= (2.66*10 -22) / 1.54
=

edge length of atom =
=
cm
2 edge length of atom= 4 * radius of atom
radius of atom = 
Radius of calcium atom=
cm= 278pm
In<em> Inferno</em>, Charon objects to the presence of Dante on the bank of the river Acheron because he is not dead.
Charon, who is the ferryman of souls, meets Dante when he is entering Hell. <u>Charon tries to force Dante to return where he came from since the living souls cannot cross the river Acheron, which is the last barrier to the entrance into the underworld</u> ("<em>Charon</em>: <em>And you approaching there, you living soul,/keep well away from these--they are the dead</em>"). However, Virgil, who guides Dante through Hell, explains Charon that Dante's journey is willed by God.
It would be Boyhood. In the book it gives great detail about his time in the Crimean War.