Potassium Atom and Electron Configuration

The video tutorial explains the atomic structure of the potassium atom using the Bohr model. It covers the atomic number, which is 19 for potassium, indicating the number of protons in the nucleus. The tutorial details how the 19 electrons are distributed across four energy levels, with specific numbers of electrons in each level. The concept of valence electrons is introduced, highlighting their importance in chemical bonding. The video concludes with a mention of additional resources for further learning.

What is the symbol for potassium on the periodic table?

• Po

• K

• P

• Pt

How many protons does a potassium atom have?

• 19

• 21

• 18

• 20

In a neutral potassium atom, how does the number of electrons compare to the number of protons?

• Depends on the isotope

• Equal number

• Fewer electrons

• More electrons

How many electrons are in the first energy level of a potassium atom?

• 3

• 4

• 2

• 1

What is the maximum number of electrons that the second energy level can hold?

• 12

• 10

• 8

• 6

How many electrons are in the third energy level of a potassium atom?

• 8

• 9

• 7

• 6

Where is the valence electron of potassium located?

• Fourth energy level

• Second energy level

• Third energy level

• First energy level

What is the role of valence electrons in chemistry?

• They form chemical bonds

• They define the element's color

• They determine the atomic mass

• They are not important

How many energy levels are occupied in a potassium atom?

• 2

• 3

• 4

• 5