Question

fe³⁺
enter your answers numerically separated by a comma.
np, ne =
protons, electrons
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part d
sr²⁺
enter your answers numerically separated by a comma.
np, ne =
protons, electrons

Explanation:

Step1: Find proton number of Fe

Fe (iron) has atomic number 26, so $N_p = 26$.

Step2: Find electron number of $Fe^{3 +}$

It has lost 3 electrons, so $N_e=26 - 3=23$.

Step3: Find proton number of Sr

Sr (strontium) has atomic number 38, so $N_p = 38$.

Step4: Find electron number of $Sr^{2+}$

It has lost 2 electrons, so $N_e=38 - 2 = 36$.

Answer:

26,23
38,36