A photon has a frequency of 1.8 × 10⁸ Hz. What is the energy of this photon?

Select the correct answer from each drop-down menu. describe what happens to a carbon-11 atom when it undergoes positron emission. the decay of a carbon-11 atom _1_, and this causes it to emit _2_.options for 1: > changes a neutron into a proton> changes a proton into a neutron> is hit with a neutron> reconfigures its protons and neutronsoptions for 2: > a negatively charged electron-sized particle> a positively charged election-sized particle> two atoms and several neutrons> two neutrons and two protons

Estimate the molar mass of the gas that effuses at 1.6 times the effusion rate of carbon dioxide.

Once similarity and one difference between a mixture of elements and a mixture of compounds