Which of the listed properties are the same for the elements carbon (c), nitrogen (n), and oxygen (o)?

hint: look at your periodic table.

number of protons
number of energy levels
number of neutrons
number of valence electrons

Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.

How to convert a density of 0.791g/cm3 to lb/ft3

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