Question

use the bohr model below to answer the questions
the element represented by this model is (symbol, not name)
this element has total electrons.
this element has valence electrons.
this element has energy levels of electrons.

Explanation:

Step1: Count the total number of electrons

Count all the red dots (electrons) in the Bohr model. There are 11 electrons.

Step2: Determine the element

The number of electrons in a neutral atom is equal to the atomic number. The element with atomic number 11 is sodium, symbol \(Na\).

Step3: Find the valence electrons

Valence electrons are the electrons in the outermost shell. The outermost shell has 1 electron.

Step4: Count the energy levels

Count the number of concentric circles (energy levels). There are 3 energy levels.

Answer:

• The element represented by this model is \(Na\)
• This element has 11 total electrons.
• This element has 1 valence electrons.
• This element has 3 energy levels of electrons.