The part of an atom that has an overall positive charge is called 1. an electron
2. the nucleus
3. the first shell
4. the valence shell

Much of the general structure and physical properties of the interior of the earth are inferred from: a)deep oil and gas bore holes b)geologic investigations c)analysis of seismic waves d) study of volcanoes

What is the volume of the fluid in the graduated cylinder with accuracy and measured to the correct degree of precision? 41.2 ml 42.0 ml 41.23 ml 41.89 ml

Compare the valence electron configuration of the nobles gas elements seen here. what statement is correct?