What is the wavelength of a light with a frequency of 1.7 x 10^17 /s?

Wavelength = Speed of Light ÷ Frequency

                    = (2.99 × 10⁸ m/s) ÷ (1.7 x 10¹⁷ /s)

                    = 1.76 ×10⁻⁹ m

periodic trends is an atom that gets larger as the number of electronic shells increase, the radius of atoms increases as you go down a certain group in the periodic table of elements. in general, the size of an atom will decrease as you move from left to right of a certain period.