Which part of the diagram represents the nucleus?
a) a
b) b
c) c
d) d

If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?

Which change in temperature is the smallest? a change of 1 thomson degree a change of 1 kelvin degree a change of 1 fahrenheit degree a change of 1 celsius degree

Which of the following are sources of revenue for media companies? a. direct sales to producers b.advertising and subscriptions c. online purchase d. capital investments