Atomic or Emission Spectrum

According to Bohr's model of the atom, what happens when an electron jumps from a lower energy orbit to a higher energy orbit?

• A. A photon is absorbed

• B. A photon is emitted

• C. The atom becomes ionized

• D. The electron splits into two

Tags

NGSS.HS-PS4-3

What is emitted when an electron in an atom returns to its ground state from a higher energy orbital?

• A. Light

• B. Heat

• C. Sound

• D. Electricity

Tags

NGSS.HS-PS4-3

What can be analyzed by comparing the emission spectra of an unknown sample of gases with the emission spectra of known elements?

• A. The chemical composition of the sample

• B. The temperature of the sample

• C. The density of the sample

• D. The pressure within the sample

Tags

NGSS.HS-PS4-3

The element hydrogen has the fewest number of lines in its emission spectrum because it has -

• only one proton.

• the fewest number of electrons.

• the smallest nucleus.

• the lowest atomic mass.

Tags

NGSS.HS-PS4-1

Which of the following does NOT describe an atomic spectrum?

• Light that contains patterns characteristic of the elements present in a gas.

• Something we can use to figure out what elements are present in the sun.

• A mixture of light of different wavelengths.

• A full rainbow, such as would be contained inside purely white light.

Tags

NGSS.HS-PS4-3

When an electric current is passed through neon, it glows​ (a)   .

• orange
• blue
• green
• yellow

Tags

NGSS.HS-PS4-3

Consider the spectrum for the hydrogen atom. in which situation will light be produced?

• electrons absorb energy as they move to an excited state

• electrons release energy as they move to an excited state

• electrons absorb energy as they return to the ground state

• electrons release energy as they return to the ground state

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

An atom absorbing energy will have its electron/s

• moving up energy levels

• going down energy levels

• stay in the same energy levels

State whether true or false.

Every element has its own unique atomic spectra.

• True

• False

In order to go from ground state to an excited state, an electron must

• emit energy

• absorb energy

• wiggle

Tags

NGSS.HS-PS1-2