Electron Configuration and Valence Electrons

Hotspot

Where would the electrons be located?

Open Ended

Why do we use different types of atomic orbitals when studying chemistry?

Dropdown

How many neutrons are there in the most common isotope of Boron? ​

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Multiple Choice

Which of the following is NOT a type of atomic orbital?

• s

• p

• q

• d

Multiple Choice

What information does the period number provide in an electron configuration?

• The number of electrons in the outer shell

• The energy level of the electrons

• The type of chemical bond formed

• The atomic mass of the element

Open Ended

Explain how the electron configuration of neon relates to its position on the periodic table.

Multiple Choice

How many valence electrons does silicon have according to its electron configuration?

• Two

• Four

• Six

• Eight

Open Ended

Compare the electron configurations of sodium and chlorine and discuss how these configurations influence their chemical reactivity.

Multiple Select

Which of the following statements about valence electrons are correct?

• They are found in the outermost shell of an atom.

• They determine the chemical bonding properties of an atom.

• They are always equal to the atomic number.

• They can participate in the formation of chemical bonds.

Multiple Choice

Which orbital type is found in the elements of groups 13 to 18 on the periodic table?

• s orbital

• p orbital

• d orbital

• f orbital

Open Ended

Reflecting on what you learned about atomic orbitals, how do the different types of orbitals (s, p, d, f) contribute to the arrangement of electrons in atoms?

Multiple Choice

Which of the following statements best explains why argon does not readily form chemical bonds with other elements?

• Argon has a full set of valence electrons, making it stable.

• Argon has only one valence electron, making it reactive.

• Argon has no electrons in its outermost shell.

• Argon can easily lose electrons to form bonds.

Labelling

Label the three parts of an electron configuration:

Drag labels to their correct position on the image

period (row)

family

electrons

block (orbital)

section

group

protons

Drag and Drop

The image shows the partial electron configuration of manganese (Mn). Below there are two empty boxes. Correctly drag the final two answers in the correct order to finish its electron configuration.​

​ ​

Placeholder

​

Placeholder

Drag these tiles and drop them in the correct blank above

4s²

3d⁵

1p⁶

2s³

3d⁹

2d⁹

Hotspot

Where would the electrons be located?

Match

Match the following

• a

• b

• c

d

f

e

• d

• f

• e

Hotspot

Which letter represents the valence electrons?

Match

Match the following

• lithium

• helium

• aluminum

• bromine

• strontium

2 energy levels

1 energy level

3 energy levels

4 energy levels

5 energy levels

• 2 energy levels

• 1 energy level

• 3 energy levels

• 4 energy levels

• 5 energy levels

Dropdown

This is a Bohr Diagram of Nitrogen. Nitrogen has

​

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valence electrons.

Match

• A

• B

• C

• D

nucleus

2nd Energy Level

Electron

1st Energy Level

• nucleus

• 2nd Energy Level

• Electron

• 1st Energy Level

Hotspot

Where would the electrons be located for oxygen?

Hotspot

Select ONLY the valence electrons for Boron.

Dropdown

An electron configuration is like an element's address. It tells you 3 things about the element: the ​

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tells you what period its in, ​

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tells you what block its in, and ​

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tells you how many ​

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are in the orbital. Every configuration starts the same, with ​

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.

Labelling

Drag the labels to the correct arrow.

Drag labels to their correct position on the image

Nucleus

Electron Cloud