<span>The rare earth elements include the lanthanide series, scandium and yttrium. They are a set of seventeen chemical elements in the periodic table. They really are not that rare but they occur together in nature and are hard to separate from one another.</span>
<span><span>Dipole-dipole interactions , example: ammoni </span><span>forces, example: methane, CH4</span><span>Hydrogen bonding example: water, H2O </span></span>
The answer for this question is 0.8
Answer:
Light , heat , and sound are examples.
Configuration of carbon is 1s2 2s2 2p2 and the rest of all is correct
