Question

questions 28 - 31 prompt questions 28 - 31: complete the tables by filling in the correct number of protons, neutrons and electrons. fill in the blank 1 point isotope iron - 56 charge 3+ # protons type your answer... # neutrons type your answer... # electrons type your answer...

Explanation:

Step1: Determine number of protons

The atomic number of iron is 26, so the number of protons is 26.

Step2: Calculate number of neutrons

The mass - number is 56. Using the formula $mass\ number=number\ of\ protons + number\ of\ neutrons$, we get $number\ of\ neutrons=mass\ number - number\ of\ protons$. So, $56 - 26=30$.

Step3: Calculate number of electrons

The ion has a charge of $3+$. For a neutral atom, the number of electrons equals the number of protons. For a $3+$ ion, the number of electrons is $26 - 3 = 23$.

Answer:

protons: 26

neutrons: 30

electrons: 23