Question

question 3 (4 points) use the following bohr model and your periodic table to fill in the blanks: bohr model image with 11 p⁺ and 11 n⁰ element name: ____ atomic #: __ atomic mass (rounded): __ # of protons: __ # of neutrons: __ #of electrons: __ # of energy levels (shells): __ # of valence electrons: ____ blank 1: blank blank 2: blank blank 3: blank blank 4: blank blank 5: blank blank 6: blank blank 7: blank blank 8: blank

Explanation:

Step1: Determine Element from Protons

The number of protons ($p^+$) is 11. From the periodic table, the element with atomic number (number of protons) 11 is Sodium (Na).

Step2: Atomic Number

Atomic number is equal to the number of protons, so atomic number = 11.

Step3: Atomic Mass

Atomic mass is approximately the sum of protons and neutrons. Protons = 11, neutrons ($n^0$) = 11, so atomic mass = 11 + 11 = 22 (rounded).

Step4: Number of Protons

Given as 11 $p^+$, so number of protons = 11.

Step5: Number of Neutrons

Given as 11 $n^0$, so number of neutrons = 11.

Step6: Number of Electrons

In a neutral atom, number of electrons = number of protons, so electrons = 11.

Step7: Number of Energy Levels

Looking at the Bohr model, there are 3 energy levels (shells) (count the concentric circles).

Step8: Number of Valence Electrons

Valence electrons are in the outermost shell. The outermost shell (3rd shell) has 1 electron (from the Bohr model diagram: count the electrons in the outermost circle).

Answer:

Blank 1: Sodium
Blank 2: 11
Blank 3: 22
Blank 4: 11
Blank 5: 11
Blank 6: 11
Blank 7: 3
Blank 8: 1