Question

question 2
2 pts
which numbers correctly complete the table above?
zn
symbol
atomic number
mass number
protons neutrons electrons
oxidation (charge) number
66
36
28
30, 30, +2
30, 30, -2
36, 30, 0
36, 30, +2

Explanation:

Step1: Recall atomic number property

The atomic number is equal to the number of protons. For Zn, the atomic number is 30, so protons = 30.

Step2: Calculate oxidation number

Oxidation number is related to charge. The formula for charge is \( \text{Charge}=\text{Protons}-\text{Electrons}\). Given protons = 30 and electrons = 28, \( \text{Charge}=30 - 28=+2\).

Answer:

30, 30, +2