Chemistry Chapter 5 Study Guide

Where are protons and neutrons located in Rutherford's atomic model?

• In the electron cloud

• In the nucleus

• Orbiting the nucleus

• Outside the atom

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NGSS.MS-PS1-1

What is one limitation of Rutherford's atomic model?

• It explained all chemical properties of elements

• It could not explain the chemical properties of elements

• It described the behavior of electrons accurately

• It predicted the existence of neutrons

According to Rutherford's model, what happens to an object when heated to higher temperatures?

• It remains the same color

• It glows dull red, then yellow, and then white

• It turns blue

• It becomes transparent

What did Niels Bohr propose about electrons?

• Electrons are found in random paths around the nucleus.

• Electrons are found in specific circular paths, or orbits, around the nucleus.

• Electrons are stationary around the nucleus.

• Electrons are found in elliptical paths around the nucleus.

What did Niels Bohr change about Rutherford's model?

• He incorporated the concept of electron clouds.

• He introduced the idea of atomic nuclei.

• He incorporated newer discoveries about how the energy of an atom changes when it absorbs or emits light.

• He proposed the existence of protons.

Who related the hydrogen atom's energy states to the electron within the atom?

• Albert Einstein

• Niels Bohr

• Isaac Newton

• Marie Curie

According to Niels Bohr, how do electrons move around the nucleus?

• In random paths

• In elliptical orbits

• In certain allowed circular orbits

• In straight lines

What type of paths do electrons follow according to Bohr's model?

• Undefined and random paths

• Fixed definite circular paths

• Elliptical paths

• Zigzag paths

In Bohr's model, what are the fixed energies an electron can have called?

• Quantum levels

• Energy levels

• Orbit levels

• Photon levels

What is a quantum of energy in Bohr's model?

• The energy required to create an electron

• The energy required to destroy an electron

• The energy required to move an electron from one energy level to another

• The energy required to split an atom