Which statement describes an electron?

What is an electron that occupies the outermost energy level or shell of an atom called?

What is water that has penetrated into the ground called?

How could a tsunami affect a coastal ocean ecosystem

2) which statement describes ionic bonding? A) a lattice of ions in a sea of electrons. B) electrostatic attraction between oppositely charged ions. C) the sharing of electrons between atoms to gain a noble gas configuration.

Explain several different ways in which foods can become contaminated and how this can be prevented. Describe the symptoms of food poisoning and other illnesses that can result from ingesting contaminated food. What treatments are available?

Andre is predicting the products of chemical reactions. In one reaction, a hydrocarbon is the only reactant. What is the best prediction and explanation of this reaction? Two new compounds form as the hydrocarbon undergoes a synthesis reaction.

What evidence is there that electrons move around in definite pathways around the nucleus? What evidence is there that electrons m

Are greenhouse gases good for us?

How to convert metric units?

Without calculation what is the approximate atomic mass of neon