Dot diagrams
Excited State
Spectra
Ion Configurations
Electron basics
100

Draw a dot diagram for Nitrogen.

N with 5 dots

  .

.N:

  .

100

When an electron moves into excited state, energy is ____________________. When an electron returns to ground state, energy is ____________________.

emitted or released, taken in/absorbed

100

When you observe a bright line spectra, what particle are you viewing?

electrons moving between energy levels emitting photons

100

Write the electron configuration for Mg+2?

2-8-2 -->

2-8

100

Draw an atom of Iodine including all subatomic particles in the correct locations.

53 protons and 74 neutrons in the nucleus


2-8-18-18-7

200

Draw a dot diagram for Sr.

Sr with 2 dots together on the right


Sr:

200

Which energy level in Calcium has more energy, 2nd or 4th?

4th

200

Match the correct spectra. See the image.

L

200

Write the ion configuration for F-1.

2-7-->

2-8

200

How any total electrons are in the element Radium?

88


2-8-18-32-18-8-2

300

Draw a dot diagram for Chlorine.

Cl with 7 dots....2 on each side except for the top

   .

:Cl:

  ..

300

Write a possible excited state electron configuration for Lithium?

1-2

300

Which elements are present in this mixture?


See image

X and A

300

Write the correct electron configuration for Al+3.


BONUS $100-who is it isoelectronic with?

2-8


and BONUS=Neon

300

What is the term for the region where an electron is most probably located?

ORBITAL

400

What electrons do dot diagrams show?

valence electrons

400

Write a possible excited electron configuration for Arsenic.

2-8-18-5  -->

2-8-17-6

400

Refer to the image. 

What elements are present in the mixture?

D and Z

400

What is the electron configuration for O-2?

2-8

400

What is the maximum number of electrons in the valence shell?


BONUS: What periodic table group contains those elements?

8


BONUS=18

500

Draw a dot diagram for Radon.

  ..

:Rn:

  ..

500

Write a possible excited state electron configuration for Bromine.

Br   2-8-18-7  -->    2-8-17-8

500

Which two atmospheric gases produce spectra responsible for Aurora Borealis?

Oxygen and Nitrogen

500

What element is isoelectronic with Se-2?

Krypton (Kr)


2-8-18-6  -->  2-8-18-8

500

What is the maximum number of valence electrons in the first 4 energy levels?

2-8-18-32

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