Absorption of energy by an electron results in

it moving from the ground to an excited state

it moving from an excited to the ground state

it moving from an excited to the ground state and the emission of a photon

A fellow student of yours thought that flame color was based on the element written at the beginning of the compound. Which statement would give evidence to support their claim?

The flames of LiCl and NaCl are different colors

The flames of LiCl and and NaCl are the same color

The flames of Na 2 SO 4 and NaCl are different colors

The flames of Na 2 SO 4 and CuCl 2 are different colors

A fellow student of yours thought that flame color was based on the element written at the end of the compound. Which statement would give evidence to support their claim?

The flames of LiCl and and NaCl are the same color

The flames of LiCl and NaCl are different colors

The flames of Na 2 SO 4 and NaCl are different colors

The flames of Na 2 SO 4 and CuCl 2 are different colors

What is significant about ROY G BIV?

It gives the orders of the colors

It helps you figure out the charge on an atom

What evidence did you observe that proves that elements give off their own unique color spectrum?

Each gas tube gave off its own unique color and color spectrum when we looked at the light through the spectroscope. None of them were the exact same.

All of the gas tubes produced a full spectrum. (A rainbow.)

When we looked at white light through a prism, we saw the rainbow.

Each gas tube gave off the same color and color spectrum when we looked at the light through a spectroscope.

Regardless of how hot the flame is, when a metal ion is placed in a flame, it always give off the same color light. Why?

The number of electrons is still the same, so the same number of electrons get excited and fall back to the ground state the same way and give off the same color every time.

The number of protons is still the same, so the same number of electrons get excited and fall back to the ground state the same way and give off the same color every time.

The number of neutrons is still the same, so the same number of electrons get excited and fall back to the ground state the same way and give off the same color every time.

The number of ions is still the same, so the same number of electrons get excited and fall back to the ground state the same way and give off the same color every time.

What evidence indicates that electrons move around the nucleus in definite pathways?

None of the elements emitted a full color spectrum, but rather only certain frequencies of the spectrum were given off. Since some of the spectrum is missing, this means the electrons can only emit frequencies at the fixed energy levels and not in between.

None of the elements emitted a full color spectrum, but rather only certain frequencies of the spectrum were given off. Since some of the spectrum is missing, this means the electrons can emit frequencies of light in between the energy levels.

All of the elements emitted a full color spectrum. (The Rainbow.)

How can scientists use the color spectrum of individual elements to help determine the composition of stars in our galaxy?

Since each element has its own unique line spectra, it is possible to use a spectrometer to examine the light being emitted by the stars to determine what elements are present?

Since each element does not have its own unique color spectrum, it is impossible to determine what elements make up our starts.

Since the stars are so far away, the light we would be studying can not be trusted to determine their composition.

Flame Test

Authored by Shannon Ballard

Chemistry

10th - 12th Grade

NGSS covered

Used 126+ times

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Content View

Student View

22 questions

Show all answers

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the color of the light that sodium compounds give off?

Green

Red

Violet

Yellow-orange

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-1

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the state when electrons move to a higher energy level upon absorption of energy?

active

inactive

excited

ground

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What compound gives off bright red color when heated over a flame?

Lithium

Calcium

Strontium

Potassium

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What particles in the heated compounds are responsible for the production of the colored light?

proton

neutron

electron

proton and neutron

Tags

NGSS.HS-PS4-3

NGSS.HS-PS1-2

NGSS.HS-PS4-4

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the color of the light that potassium compounds give off?

Yellow-orange

Lavender (Violet)

Pinkish red

Green

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-1

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the color of the light that calcium compounds give off?

Yellow

Orange

Blue-green

Purple

Tags

NGSS.HS-PS4-3

NGSS.HS-PS1-1

MULTIPLE CHOICE QUESTION

1 min • 1 pt

If electrons gain energy they

move up one or more shells

more down one or more shells

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Flame Test

What is the color of the light that sodium compounds give off?

What is the state when electrons move to a higher energy level upon absorption of energy?

What compound gives off bright red color when heated over a flame?

What particles in the heated compounds are responsible for the production of the colored light?

What is the color of the light that potassium compounds give off?

What is the color of the light that calcium compounds give off?

If electrons gain energy they

Metal ion with a lilac flame

Absorption of energy by an electron results in

What charge does an electron have?

Access all questions and much more by creating a free account

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