Geography belongs to which main category of science?
a. life science
b. physical science
c. earth science

Which of the following elements would you expect to have the lowest ionization energy value? fluorine, lithium, neon, nitrogen

Ants live on acacia trees in south america. the ants feed on sugars secreted by the trees. the trees provide room for the ants to live. the ants sting any other insect or animal that comes to eat the trees. what type of relationship is this?

Describe the forces both attractive and repulsive that occur as two atoms move closer together.