What does it mean for an atoms behavior if it is missing electrons in the valence shell?

There are six elements that make up most of the human body. which of the following is not one of these six elements?

It is believed that europa, one of jupiter’s moons has an ocean beneath its surface. based on how earth’s oceans and atmosphere are believed to have formed, what can be said about europa’s supposed ocean? the arrival of in the early days of europa’s existence could have formed its ocean. it is likely that the water experienced , similar to earth. it is also possible that this water is retained beneath europa’s surface and in its atmosphere due to europa’s .

Resperation is a way to release carbon back into the atmosphere