25/26 Bohr & Lewis Dot Models Notes Practice

Rate your understanding of Bohr & Lewis Dot Models as a whole

• 1* I am super lost

• 2** I get some things but not others

• 3*** I feel pretty good; I just need more practice

• 4**** I feel super Confident

Tags

NGSS.MS-PS1-1

Match the following

• Top corner

• Elemental Symbol

• In the middle

• Mass number

• Bottom of tile

• Under Symbol

• Name of element

• Atomic Number

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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 (a)   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)   . These look like​ (c)   around the nucleus.

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

Match the following

• Number of n⁰

• Atomic Number

• Number of electrons

• m - P⁺

• Number of Valence electrons

• P⁺+ n⁰

• Number of energy levels

• Group Number

• Atomic Mass

• Period 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

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