Answer:
it's x that is the right answer
Answer:
The edge length is 0.4036 nm
Solution:
As per the question:
Density of Ag, 
Density of Pd, 
Atomic weight of Ag, A = 107.87 g/mol
Atomic weight of Pd, A' = 106.4 g/mol
Now,
The average density, 
where
= Volume of crystal lattice
a = edge length
n = 4 = no. of atoms in FCC
Therefore,

Therefore, the length of the unit cell is given as:
(1)
Average atomic weight is given as:

where
= 79 %
= 107
= 21%
= 106
Therefore,

In the similar way, average density is given as:


Therefore, edge length is given by eqn (1) as:

Answer:
after it has hit the ground
The Law of Conservation of energy states that the total energy of an isolated system remains constant-it is said to be the conserved over time. It applies by us burning calories because humans can lose or gain weight.