A hydrogen atom radiates a photon as it falls from a 2p level to the 1s level. The wavelength of the emitted radiation equals: (a) 22.8nm (b) 91.2nm (c) 121.6nm (d) 182.4 nm

Llama have 74 chromosomes how many chromosomes will they be found in their gametes explain how you know

What is a metal replacement reaction

1. if you have a gas at 127 degrees c, what is it's absolute temperature (kelvin)? a. 200kb. 300kc. 400kd. 500k2. if you had a gas whose absolute temperature measured 45 k, what is that temperature in celsius? a. -228 cb. -300 cc. 125 cd. 112 c