What is the wavelength of radio waves? between 1 x 10-3 and 1 x 10- meters less than 1 x 10-11 meters Ос. more than 1 x 10-' meters between 1 x 10-8.4 x 10-7 meters between 4 x 10-7.7 x 10-7 meters

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.

it's c (engineer's do their work with mechanical stuff not on any living being)

i believe the answer is three water molecules