Bohr, Lewis Dot & Valence Electrons

What is a Bohr Model?

• a simplified representation of an atom

• vertical column in periodic table

• horizontal row in periodic table

• Only shows the element symbol and it's outer most electron shell

Tags

NGSS.MS-PS1-1

What are the names of the 2 models that we have been using?

• Bohr and Newton Structures

• Lewis and Caroll Models

• Bohr Model & Lewis Dot Structure

• Element & Atom structures

How many electrons can go in the first energy level?

• 2

• 8

• 18

• 32

What is a Lewis Dot Structure?

• It shows all of the particles in the atom.

• Contains protons and neutrons

• Only shows the element symbol and it's outer most electron shell

• Contains protons and electrons

Tags

NGSS.MS-PS1-1

What's a valence electron?

• electrons in the second energy level
• electrons in the outermost energy level
• the atomic number
• electrons in the first level

Tags

NGSS.MS-PS1-1

How many Valance electrons does Iodine Have?

• 6
• 16
• 7
• 17

Tags

NGSS.MS-PS1-1

How many electrons does potassium K contain?

• 19

• 39

• 20

• 40

Tags

NGSS.MS-PS1-1

Why do carbon, silicon, and tin all react similarly?

• They are located in the same period

• They have an even atomic number

• They have the same number of energy levels

• They are located in the same group

Tags

NGSS.MS-PS1-1

How many valence electrons are in a neutral atom of nitrogen?

• 5

• 3

• 2

• 15

Tags

NGSS.MS-PS1-1

What is the correct lewis dot diagram for Boron?

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Tags

NGSS.MS-PS1-1