W12D5 Test The Bohr Model and Atomic Spectra

Fill in the blank: The unique pattern of light obtained when an element is subjected to heat or electricity is called its ________.

• Atomic mass

• Emission spectrum

• Chemical formula

• Electron configuration

Fill in the blank: Every element emits light when energized by heating or passing ________ through it.

• Water

• Electric current

• Sound waves

• Magnetic field

What is the source of light in neon signs?

• Tungsten

• Neon gas

• Hydrogen

• Oxygen

Fill in the blank: The possible orbits in Bohr's model are known as ________.

• energy levels

• atomic spectra

• electron clouds

• nuclei

What was one of the weaknesses of Bohr's model?

• It could not explain why only certain energy levels were allowed

• It could not explain electron movement

• It could not explain atomic spectra

• It could not explain the nucleus.

In Bohr's model, electrons release energy when they move to a ______ energy level.

• Higher

• Lower

• Same

• Random

What does Bohr's model suggest about the energy levels of electrons in an atom?

• They are changeable

• They are unchangeable

• They are random

• They are infinite

Bohr's model was only successful in calculating energy levels for which atom?

• Helium

• Lithium

• Hydrogen

• Oxygen

According to Bohr's model, what produces the atomic absorption spectra of atoms?

• Electrons losing energy

• Electrons gaining energy and jumping to a higher energy level

• Protons moving

• Neutrons absorbing energy

What does the term 'quantized' mean?

• To have a specific amount

• To be random

• To be infinite

• To be changeable.