Periodic Table and Electron Configuration

This video introduces the concept of periodicity and the structure of the periodic table, including groups and periods. It explains chemical families and electron configurations, focusing on elements like oxygen and sulfur. The video describes the s, p, d, and f blocks of the periodic table and discusses valence electrons and energy levels. Examples of determining electron configurations for elements such as tin and nickel are provided. The video concludes with a preview of upcoming topics on periodic trends.

How many columns, also known as groups, are there in the periodic table?

• 21

• 18

• 14

• 7

What is the electron configuration ending for elements in the same column as oxygen?

• p2

• p3

• p4

• p5

Which block in the periodic table is associated with elements that finish with s1 or s2?

• d block

• p block

• f block

• s block

What is the highest energy level for sulfur?

• 2

• 1

• 3

• 4

How many valence electrons does oxygen have?

• 7

• 6

• 5

• 4

What does the period number indicate about an element?

• Number of energy levels

• Number of valence electrons

• Number of neutrons

• Number of protons

Which noble gas is used as a reference for the electron configuration of tin?

• Neon

• Krypton

• Argon

• Xenon

What is the electron configuration ending for nickel?

• 3d8

• 4s2

• 4p6

• 5d10

How many electrons are filled in the 4d orbit for tin?

• 8

• 10

• 12

• 14

Which element's electron configuration starts with argon and ends with 3d8?

• Nickel

• Copper

• Iron

• Zinc