Emission line spectra

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

• Absorb energy
• Release energy

Tags

NGSS.HS-PS1-2

Why are line emission spectra of elements called "atomic fingerprints"?

• They are all the same
• They are all unique
• They are all similar
• They all contain colored light

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-1

The unknown emissions spectra belongs to the element

• Hydrogen

• Mercury

• Neon

• Sodium

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-1

What subatomic particle is responsible for the spectral lines seen in emission spectra diagrams?

• electrons

• protons

• neutrons

Tags

NGSS.HS-PS1-2

NGSS.HS-PS4-3

Which element(s) is/are found in the star's spectra below?

• Hydrogen only

• Hydrogen & Helium

• Calcium only

• Hydrogen & Calcium

Tags

NGSS.HS-PS4-3

An atom that has gained energy beyond normal is said to be ...

• excited

• grounded

• naturalized

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-1

When an atom has all of its electrons in the lowest energy orbitals available, the atom is  

• in ground state
• in excited state
• giving off light energy
• unstable

The unknown emissions spectra belongs to the element

• Hydrogen

• Mercury

• Neon

• Sodium

Tags

NGSS.HS-PS1-1

Each element produces its own pattern of emission spectra lines because each element has its own distinct

• Speed of light

• Electron configuration

• Number of neutrons

• None of these

Tags

NGSS.HS-PS1-1

Emission spectra emitted by an element (or compound) will produce ___ through a spectroscope.

• bright lines

• a continuous rainbow

• dark lines

• white light

Tags

NGSS.HS-PS1-2

NGSS.HS-PS4-3