5.3 Bohr Models & Lewis Dot Structures Work

Match the following

• Top corner

• Under Symbol

• Bottom of tile

• Mass number

• In the middle

• Elemental Symbol

• Name of element

• Atomic Number

Tags

NGSS.MS-PS1-1

What is a Bohr Model?

• A model of an atom that uses only valence electrons an atom contains

• A model of an atom that uses all electrons an element contains

• A model of an atom that uses some of the electrons an element contains

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

Tags

NGSS.MS-PS1-1

The first energy level of a Bohr model can hold a max of ​ (a)   e^- . The second and third levels can both only hold a max of ​ (b)   e^- . The fourth level can hold ​ (c)   e^- and the fifth level can only hold ​​ ​ (d)   electrons

• two
• eight
• eighteen
• thirty-two
• three
• eighty
• thirty

What is a Lewis Dot Structure?

• A model of an atom that shows Only the element symbol and some of the electrons

• A model of an atom that shows Only the element symbol and all of the electrons an atom contains

• A model of an atom that shows Only the element symbol and it's outer most electrons

• A model of an atom that shows protons, neutrons and it's outer most electrons

Valence electrons are in the __ shell of a model or atom.

The group number is equal to the number of ​ (a)   and the period # is equal to the number of ​ (b)   .

• valence electrons
• energy levels
• electrons
• rings
• atomic mass
• neutrons

Match the following

• Number of Valence electrons

• Period Number

• Number of n⁰

• m - P⁺

• Atomic Mass

• Atomic Number

• Number of electrons

• P⁺+ n⁰

• Number of energy levels

• Group Number

Tags

NGSS.MS-PS1-1

The elements F, Cl, and I are all in the same group/column on the periodic table. Which is the best explanation for this arrangement?

• They have the same number of energy levels

• They are the same type of element

• Have the Same number of protons

• they have the same number of valence electrons

Tags

NGSS.MS-PS1-1

Both calcium and potassium have the same number of energy levels. How else could this be stated?

• Both elements are in the same group in the periodic table

• Both elements are in the same period on the periodic table

• Both elements have the same atomic number

• Both elements have the same atomic mass

Put the steps to drawing a lewis dot structure in order

• Add electrons moving clockwise around the the box

• 4

• Only double up electrons once each side of the box is full,

• 2

• Write elements symbol

• 3

• Put the first electron at the top of the box

• 1

• draw a box around the symbol

• 5

Tags

NGSS.MS-PS1-1