Drawing Electron Configuration Diagrams

The video tutorial explains the structure of an atom, focusing on electron configurations. It covers how electrons are arranged in energy levels or shells around the nucleus and provides a step-by-step guide to drawing electron configurations, using lithium as an example. The tutorial also outlines the rules for filling electron shells and introduces shorthand notation for electron configurations. Finally, it offers a practice exercise with a carbon atom to reinforce learning.

What is the arrangement of electrons in an atom called?

• Electron configuration

• Proton arrangement

• Atomic structure

• Neutron distribution

In an atom, where are electrons found?

• In the nucleus

• In energy levels or shells

• In the neutron cloud

• In the proton cloud

How many electrons can the first shell hold?

• 8

• 4

• 2

• 1

For a lithium atom with an atomic number of 3, how are the electrons arranged?

• 3 in the first shell

• 3 in the second shell

• 2 in the first shell, 1 in the second shell

• 1 in the first shell, 2 in the second shell

What is the maximum number of electrons the second shell can hold?

• 6

• 4

• 2

• 8

How many electrons can the third shell hold?

• 8

• 10

• 2

• 4

What is the shorthand notation for the electron configuration of calcium?

• 2.2.8.8

• 8.2.8.2

• 2.8.8.2

• 2.8.2.8

What is the purpose of drawing electrons evenly spaced out on each shell?

• To make the atom look symmetrical

• To keep the diagrams tidy and make it easier to count the electrons

• To show the energy levels

• To represent the chemical symbol

How would you write the electron configuration of a carbon atom in numbers?

• 2.2.4

• 4.2

• 2.2.2

• 2.4

How many electrons are in the outer shell of a carbon atom?

• 2

• 4

• 6

• 8