5.for the following questions, use a periodic table and your atomic calculations to find the unknown information about each isotope: you have an isotope with 23 protons and 29 neutrons. what element is it? na: sodium si: silicon cu: copper v: vanadium

a high pressure system is a dense air mass that is usually cooler and drier than the surrounding air. a low pressure system is a less dense air mass that is usually wetter and warmer than the surrounding air.

in general, areas that experience high atmospheric pressure also experience fair weather. low pressure systems can cause the formation of clouds and storms. air usually flows from areas of high pressure to areas of low pressure..

layers of the earth affect the waves and these effects are seen on instruiments such as seimometers