Which statement could be a scientific theory? A) The behavior of atoms can be tested using sophisticated laboratory equipment
B) Atoms combine and separate in predictable ways
C) Tiny particles called atoms are the fundamental units of matter.
D) The properties of atoms determine which element they belong to.

What is the mass of 8 moles of sodium atoms

Which theory was contradicted by experiments with the photoelectric effect? light spreads out after it passes through a small opening. as soon as light strikes metal, electrons will be ejected. visible light, regardless of color, will cause the ejection of electrons when striking metal. the kinetic energy of ejected electrons depends on the frequency of light that strikes the metal.

Phosphorous can form an ion called phosphide, which has the formula p3−. this ion can form an ion called phosphide, which has the formula p3−. this ion properties very similar to those of pforms when a phosphorus atom loses three protonsis called a cationcontains 18 electrons