the mass number of fe²⁺ is 56. how many neutrons are there in a single fe²⁺ atom?\n28\n30\n56\n58
the mass number of fe²⁺ is 56. how many neutrons are there in a single fe²⁺ atom?\n28\n30\n56\n58
Answer
Explanation:
Step1: Recall atomic number of Fe
The atomic number of iron (Fe) is 26. It represents the number of protons.
Step2: Use mass - number formula
The mass number (A) is the sum of protons (p) and neutrons (n), i.e., $A=p + n$. We know $A = 56$ and $p=26$. We can find the number of neutrons by rearranging the formula: $n=A - p$. Substitute the values: $n = 56-26$. $n = 30$.
Answer:
30