Pros â It is considered easy to handle, store and transport. It is easier to extract from the ground than coal and more cost effective to transport. Cons-The burning of oil for energy production purposes, like coal, results in the emission of carbon gases into the atmosphere.In addition there are numerous safety hazards involved in the exploration of oil in onshore and offshore sites.his poses problems as non renewable sources of energy production are not only exhaustible but also have various negative effects on the environment and climate, both of which have long term effects on the earthâs system.
The element calcium (atomic number 20) has the electron configuration. 1s2 2s2 2p6 3s2 3p6 4s2. or in noble gas form : [Ar] 4s2. The element calcium (atomic number 20) has the electron configuration <br /> 1s2 2s2 2p6 3s2 3p6 4s2<br /><br /> or in noble gas form : [Ar] 4s2.
Question:I know that the electronic configuration of Cr only is [Ar] 3d5 4s1. But how about Cr2+? Answers:[Ar]3d4 4s0 elimination of electron starts from the outermost shell. Question:Write the electron configuration for the sodium atom and for the simple ion it most commonly forms. Indicate which noble gas has the same electron configuration as the ion. I've got about 20 more of these problems and I haven't a clue how to answer them. I'm hoping somebody can explain this to me so I can figure out the rest on my own.