Se
1s^2 2s^2 2p^6 3s^2 3p^6 3d^10 4s^2 4p^4
<span><span><span>Be
1s^2 2s^2
</span></span></span>
yes because they are inert or inactive at normal temperature, they are inactive because their outer most orbit contain either 2 or 8 electrons.that make them stable
Answer:
D
Explanation:
Isotopes are identified by their mass, which is the total number of protons and neutrons.
Because the density of Octanol is less than 1.00 g/mL, the density of water, the octanol will rest on top of the water in the beaker. Octanol will be on the top, water will be on the bottom.
