Atomic Spectrum

The unknown emissions spectra belongs to the element

• Hydrogen

• Mercury

• Neon

• Helium

Tags

NGSS.HS-PS1-1

NGSS.HS-PS4-3

True or False: The ground state is the highest energy state of an atom.

• True

• False

Tags

NGSS.HS-PS1-4

For an electron to change from ground state to an excited stated it must...

• Absorb energy

• Release energy

Tags

NGSS.HS-PS1-2

Which elements are in the unknown sample?

• A and B

• B and C

• A and D

• B and D

Tags

NGSS.HS-PS1-1

The parallel lines represents...

• energy levels of the atom

• energy levels of the electrons

• energy levels of the photons

• energy levels of the nucleus

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

If an electron moves from n=4 to n=2 it ____

• absorbs energy

• releases energy

Tags

NGSS.HS-PS1-2

Look carefully at the picture. It shows an electron in the excited state on the left, and the electron returning to its ground state on the right. When the electron return to the ground state it emits a_______________________.

• blast of cold air

• electrostatic charge

• proton

• photon (light)

Tags

NGSS.HS-PS4-3

The picture shows an atom in the ground state absorbing energy and the electron jumps to the excited state. Which state has higher energy?

• Ground State

• Excited State

Tags

NGSS.HS-PS1-2

What produces electromagnetic radiation?

• Electrons changing energy levels

• Electrons bonding with other atoms

• Electrons leaving the atomic nucleus

• Electrons becoming protons or neutrons

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

What is the atomic spectrum?

• A range of wavelengths emitted by atoms

• A single wavelength emitted by atoms

• A range of wavelengths absorbed by molecules

• A single wavelength absorbed by molecules

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

NGSS.HS-PS4-4