Noble Gases and Electron Configuration

The video tutorial explores the atomic structure of argon using the Bohr model. It begins by identifying argon's atomic number and explaining the balance of protons and electrons in a neutral atom. The tutorial then details how electrons are arranged in energy levels, using the periodic table as a guide. The Bohr model is used to visualize argon's structure, highlighting its status as a noble gas due to its full outer shell of valence electrons, making it non-reactive.

What does the atomic number of Argon indicate?

• The total mass of the atom

• The number of neutrons in the nucleus

• The number of protons in the nucleus

• The number of electrons in the outer shell

How many electrons are placed in the first energy level of Argon?

• One

• Four

• Three

• Two

How many electrons are in the second energy level of Argon?

• Eight

• Nine

• Seven

• Six

In which energy level do the last eight electrons of Argon reside?

• First

• Fourth

• Second

• Third

What does the Bohr model of Argon illustrate?

• The atomic mass of Argon

• The number of neutrons in Argon

• The chemical reactivity of Argon

• The arrangement of electrons in Argon

Why is Argon considered a noble gas?

• It is highly reactive

• It has more protons than electrons

• It has a full outer energy level

• It has a high atomic mass

What characteristic of noble gases makes them non-reactive?

• They have a high atomic number

• They have full outer energy levels

• They have incomplete outer shells

• They have more electrons than protons

What is the significance of a full outer energy level in noble gases?

• It makes them highly reactive

• It makes them unstable

• It makes them non-reactive

• It increases their atomic mass