For the transmutation shown, which of the following is x?

Choice A: carbon-12, .

Explanation:

Let

Symbol of X: .

Consider the two conservation laws:

Sum of mass numbers:

Equate the two sides:

.

Thus the mass number of X is 12.

Try the steps above to find the atomic number of X. The number on the lower-left corner of indicates that the atomic number of this neutron is zero.

.

Thus the atomic number of X is 6.

What element is X? Refer to a modern periodic table. The element with atomic number 6 is carbon. The symbol for carbon is . The mass number of this isotope is 12. The answer will be .

93.2 ml + 3920 ml = 4013 ml total  

(93.2 ml) * (2.03 m) / (4013 ml) = 0.0471 m

the volume in in l of the diluted solution would be 0.0471 m.

a  solution  is always transparent, light passes through with no scattering from solute particles which are molecule in size. the  solution  is homogeneous and does not settle out. a colloid is intermediate between asolution  and a  suspension. while asuspension  will separate out a colloid will not.