help! does anyone know how to do a thermal energy and size demo? i need to use it as evidence in an essay about which heating system would be good for a high school, and the essay's due tonight! (the file provided is a thermal energy and size demo.)

the electronic configuration of an atom with eight electrons is 1s²2s²2p⁴. the orbital diagrams are shown in the figure.

as per the hunds rule:

1. electrons tend to avoid being in the same orbital as per as practicable.

2. electrons in different orbitals of the same energy will have their spin parallel.

this can be illustrated from the multiplicity of the orbitals of the atom. as there are four electrons in the p orbital and p orbital has 3 sub-shells. the electrons can be fed in different ways as shown in the figure but the correct orbital diagram will be as per the hunds rule.

away from the curb

explanation:

the wheels would then hit the curb if it started to rolling, decreasing the chance of an accident.

um i think it might be a car?

a chemical change results in a new substance being formed; whereas a physical change will result in a different state of matter

explanation: