Question

question 8 (4 points)
draw the bohr model for calcium on your own paper and then fill in the blanks using your periodic table and bohr model.
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: Element name

Calcium is the element, so Blank 1: Calcium.

Step2: Atomic #

Atomic number of Calcium is 20, so Blank 2: 20.

Step3: Atomic mass (rounded)

Atomic mass of Calcium is approximately 40 (rounded), so Blank 3: 40.

Step4: # of protons

Protons = Atomic number, so 20, Blank 4: 20.

Step5: # of neutrons

Neutrons = Atomic mass - Atomic number = 40 - 20 = 20, Blank 5: 20.

Step6: # of electrons

Electrons = Protons (neutral atom), so 20, Blank 6: 20.

Step7: # of energy levels (shells)

Calcium has 4 energy levels (2, 8, 8, 2), so Blank 7: 4.

Step8: # of valence electrons

Valence electrons are in the outermost shell, Calcium has 2, so Blank 8: 2.

Answer:

Blank 1: Calcium
Blank 2: 20
Blank 3: 40
Blank 4: 20
Blank 5: 20
Blank 6: 20
Blank 7: 4
Blank 8: 2