Why do the spectra of individual elements only have certain bands of colors?

electrons are only allowed to have certain energies

they don't have enough electrons

not all of the electrons are changing energy levels

some electrons are moving up levels while some are moving down

Which element(s) is/are in Unknown W?

Hydrogen, Potassium, and Lithium

What is the location of the electron?

In orbits/energy levels around the nucleus of an atom.

in the nucleus of the atom with the protons and neutrons.

Electrons can be located in both the nucleus and orbits around it.

Ground state means that an electron is...

at its lowest possible potential energy

When talking about energy levels in an atom, what is an "excited state"?

Any level higher than the ground state.

The highest energy state of an atom.

The lowest energy state of an atom.

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

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.)

Electrons and Light Review

Quiz

•

Science

•

9th - 12th Grade

•

Practice Problem

•

Easy

•

NGSS

HS-PS1-1, HS-PS4-3, HS-PS4-1

+2

Standards-aligned

Amy Smith

Used 1+ times

FREE Resource

39 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What block is purple?

s

p

d

f

Tags

NGSS.HS-PS1-1

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What block is green?

s

p

d

f

Tags

NGSS.HS-PS1-1

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What block is blue?

s

p

d

f

Tags

NGSS.HS-PS1-1

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

In an atom, an orbital represents

the most probably location of a proton

the most probable location of an electron

the least probably location of a neutron

photons emitted as electrons move to lower energy levels

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

An electron occupies the lowest energy orbital possible

Hund’s rule

Pauli exclusion principle

Bohr model of the atom

Aufbau principle

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Electrons that have not been excited are said to be at:

high level

base line

set state

ground state

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Light is emitted when electrons

move from one atom to another.

collide with one another, releasing energy.

move from a lower energy level to a higher energy level.

move from a higher energy level to a lower energy level.

Tags

NGSS.HS-PS4-3

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Electrons and Light Review

39 questions

What block is purple?

What block is green?

What block is blue?

In an atom, an orbital represents

An electron occupies the lowest energy orbital possible

Electrons that have not been excited are said to be at:

Light is emitted when electrons

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

The unknown in this image must be

The color of visible light with the LONGEST wavelength is

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