Chemistry: Precision and Design — Flashcard 12 (Sections 7.1–7.2)

Front

Charlotte is learning about light in her science class. Her teacher explains that light consists of tiny bundles or "packets" of energy called spectra. Is this statement correct?

Back

Photons

Front

While visiting a science museum, Maya observes a device that shows only certain wavelengths of light, not a full rainbow. The display is called a line spectrum. Is this statement true or false?

Back

True

Front

Is the energy of a light 'packet' inversely proportional to its frequency according to quantum theory?

Back

Directly

Front

What is the most stable energy state of an atom?

Back

lowest

Front

When a hydrogen atom is in the ground state, n has a value of 0.

Back

1

Front

What property of a wave is equal to half the vertical distance between the crest and the trough?

Back

amplitude

Front

Which model of the atom indicates electrons move about the nucleus only in specific, quantized orbits?

Back

Bohr model

Front

Which scientist showed that a light wave can be described as an electromagnetic wave, with an electric field and a magnetic field vibrating at right angles to each other?

Back

James Clerk Maxwell

Front

When the gas inside a neon sign is heated, which subatomic particle changes energy levels to release light?

Back

electron

Front

What is the SI unit of frequency?

Back

hertz