Answer question 12 on page 126 of the textbook, about
the wavelengths of radio signals. Give the answers in appropriate
units of length, i.e. ones that minimize the number of zeroes.
The most common atom of iron has 26 protons and 30 neutrons in its
nucleus. What are its atomic number, atomic mass, and number of
electrons if it is electrically neutral?
Consider the following three atoms: Atom 1 has 7 protons and 8
neutrons; atom 2 has 8 protons and 7 neutrons;, atom 3 3 has 8 protons
and 8 neutrons. Which two are isotopes of the same element?
Which element is this? _______________
Consider fluorine atoms with 9 protons and 10 neutrons. What are the
atomic number and atomic mass of fluorine? Suppose we could add a
proton to this fluorine nuclues. Would the result still be fluorine?
How many electrons could a fluorine atom lose, at most? _______________