Gchem exam 1

Gchem exam 1 - Term Definition Photoelectric Effect When...

Info icon This preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Term: Photoelectric Effect Definition: When electromagnetic radiation of sufficient minimum energy strikes the surface of a metal inside an evacuates tube, electrons are stripped off the metal to create an electric current. Term: Emission spectrum Definition: Bright line spectrum Term: Absorption spectrum Definition: Wavelengths absorbed Term: Frequency Definition: High frequency = shorter wavelengths=blue. Term: Frequency Definition: Low frequency = longer wavelengths = red
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Term: Quantum Mechanics Definition: Based on the wave properties of matter, describes the behavior of very small particles much better. Term: Heisenberg uncertainty principle Definition: Theoretical association that is consistent with all experimental observations Term: Fact Definition: It is impossible to determine accurately both the momentum and the position of an electron simultaneously Term: Atomic orbitals Definition: In any atom, all orbitals with the same principal quantum number n are similar in size. In an atom, larger values of n correspond to larger orbital size. Each orbital with a given n value becomes smaller as nuclear charge increases
Image of page 2
Term: Alpha particle Definition: A helium ion with a 2+ charge; an assembly of two protons and two neutrons Term: Canal ray Definition: A stream of positively charged particles that moves toward the negative electrode in a cathode ray tube; observes to pass through canals in the negative electrode. Term: Continuous spectrum Definition: A spectrum that contains all wavelengths in a specified region of the electromagnetic spectrum.
Image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern