Exam 5: Atomic Theory: the Nuclear Model of the Atom

The chemical symbol of germanium is Ge.An isotope of this element has 32 protons and 46 neutrons in the nucleus.What are the nuclear symbol,the atomic number,and the mass number of this isotope of germanium? Nuclear symbol Atomic number Mass number

Two natural isotopes exist for silver.51.83% of the atoms have a mass of 106.90509 u,and the remaining fraction has a mass of 108.9047 u.Calculate the atomic mass of silver.

Which of the following statements is true?

Which of the following is the best definition of the atomic mass unit?

Consider the following pictorial representation of the postulates of Dalton's atomic theory. Which of the following is the best illustrates of the law of multiple proportions?

Dalton's atomic theory explained the observation that the percentage by mass of the elements in a compound is always the same,thus Dalton's atomic theory supports what Law?