Question

question 12 (3 points)
state the element, the mass number, the atomic number, and the number of protons, neutrons, and electrons based on the atomic notation below
$_{32}^{72}ge^{-2}$
blank 1: element name (check your spelling)
blank 2: mass number (only write the number)
blank 3: atomic number (only write the number)
blank 4: number of protons (only write the number)
blank 5: number of neutrons (only write the number)
blank 6: number of electrons (only write the number)
blank # 1
blank # 2
blank # 3

Explanation:

Step1: Identify the element symbol

The symbol is Ge, which stands for Germanium.

Step2: Determine the mass number

The mass number is the superscript on the left - hand side of the atomic symbol, which is 72.

Step3: Determine the atomic number

The atomic number is the sub - script on the left - hand side of the atomic symbol, which is 32.

Step4: Find the number of protons

The number of protons is equal to the atomic number. So, it is 32.

Step5: Calculate the number of neutrons

The number of neutrons is the mass number minus the atomic number. So, $72 - 32=40$.

Step6: Calculate the number of electrons

The ion has a charge of - 2, which means it has gained 2 electrons. For a neutral atom, the number of electrons equals the number of protons. So for this ion, the number of electrons is $32 + 2=34$.

Answer:

Blank # 1: Germanium
Blank # 2: 72
Blank # 3: 32
Blank # 4: 32
Blank # 5: 40
Blank # 6: 34