Question 1
The correct symbol for the isotope of potassium with 22 neutrons is ________.
◦

K
◦

K
◦

P
◦

P
◦

K
Question 2
The atomic mass of an element is equal to ________.
◦ its atomic number
◦ the mass of an "average atom"
◦ one-twelfth of the mass of a carbon-12 atom
◦ the mass of the heaviest isotope
◦ its mass number