Which term describes atoms with different atomic masses due to varying numbers of neutrons? (points : 3)
ions
isotopes
cations
compounds

Individuals who live below the poverty line get seriously ill more often than those who do not what could be the hidden variable in this situation?

Achlorine atom has 17 protons and 18 neutrons. what is its mass number? what is its atomic number?

A1-lb collar is attached to a spring and slides without friction along a circular rod in a vertical plane. the spring has an undeformed length of 5 in. and a constant k =25 lb/ft. knowing that the collar is released from being held at a determine, the speed of the collar and the normal force between the collar and the rod as the collar passes through b.