Atomic Structure and Electron Configuration

The video tutorial explains the atomic structure of boron, including its protons, neutrons, and electrons. It covers the Bohr model and energy levels, showing how electrons are arranged. The tutorial also introduces the Lewis structure to illustrate boron's reactivity, emphasizing the importance of full energy levels for stability.

What is the atomic number of Boron?

• 5

• 3

• 10

• 7

How many neutrons does Boron have?

• 7

• 8

• 5

• 6

Where are the protons and neutrons located in an atom?

• In the outer shell

• In the nucleus

• In the electron cloud

• In the energy levels

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

• 1

• 2

• 4

• 8

How many electrons does Boron have in its L energy level?

• 2

• 3

• 5

• 8

What does the Bohr model help us understand about an element?

• Its color

• Its atomic mass

• Its electron arrangement

• Its chemical formula

In a Lewis structure, which electrons are represented?

• No electrons

• Only inner electrons

• All electrons

• Only outermost electrons

Why is the Lewis structure useful?

• To find atomic number

• To predict reactivity

• To calculate density

• To determine atomic mass

What does an element aim to achieve by gaining or losing electrons?

• A full outer energy level

• A different element symbol

• A lower atomic mass

• A higher atomic number

Which model is used to visualize the outermost electrons of an element?

• Lewis structure

• Periodic table

• Bohr model

• Atomic model