The Electron Affinity(EA) tends to as the atomic number increases In any group. a.)increase
b.)decrease
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Is 9 correct? and can someone me with 10? it’s due tomorrow, you

Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false

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.