What+differentiates+the+isotopes+of +an+element?

Apush or pull that moves or changes and object when to objects touch

As we move from left to right across the periodic table, what is the general trend? a) atomic radii increase. b) electronegavitiy decreases. c) nuclear shielding increases. d) metallic character decreases.

List and describe the neurological effects of the vocs and other air pollutants,as described by dr.theo colborn