Mean in German: bedeuten, meinen. Mean if a synonym is cruel would be 'gemein'. Just like English the word 'mean' has two meanings. You might 'mean'(intend) to say that someâ¦one is a 'mean' (cruel) person.
The number of electrons in the first two levels of an atom of sodium is as follows:Level 1 contains a single s sublevel = 2 electronsLevel 2 contains s and p sublevels = 2 + 6 = 8 electrons. So far, levels 1 and 2 have given us 10 electrons.
One of the electrons is found in an antibonding orbital. Hydrogen atoms have a single 1s electron. The 1s orbital has room for 2 electrons, a spin up electron and a spin down electron. If a hydrogen atom contains an extra electron, forming an H- ion, the 1s orbital is filled. If an H atom and H- ion approach each other, a sigma bond will form between the two atoms.