The part of an atom that has an overall positive charge is called A)
an electron
B)
the nucleus
C)
the first shell
D)
the valence shell

What type of electromagnetic radiation has a shorter wavelength than blue light

The diagram shows the relationship between scientific disciplines.the names of some scientific disciplines have been removed from the boxes. which scientific discipline belongs in the blue box? a.physics b.biology c.chemistry d.metallurgy

The ammonia molecule in the diagram has the observed bond orientation because