Fill in the missing information:

| symbol | | atom or ion? check all that apply | | number of protons | number of electrons |
| :----- | :-: | :-------------------------------- | :-: | :---------------- | :---------------- |
| 2+ Mg | | cation | | | |
| C | | neutral atom | | | |
| | | neutral atom | | 51 | 54 |

Mg 2 + has 12 protons and 10 electrons, and it is a cation.
C has 6 protons and 6 electrons, and it is a neutral atom.
Sb 3 − has 51 protons and 54 electrons, and it is an anion.
The completed table provides the number of protons and electrons for each element/ion, along with its charge state.

Explanation

Introduction to Filling the Table Let's fill in the missing information in the table step by step. We'll analyze each row to determine the missing values based on the principles of atomic structure and ion formation.

Analyzing Magnesium Ion (Mg 2 + )
For the first row, we have Mg 2 + . Magnesium (Mg) has an atomic number of 12, which means it has 12 protons. The '2+' charge indicates that it has lost 2 electrons. Therefore, the number of electrons is 12 - 2 = 10. Also, since it has a positive charge, it is a cation.

Analyzing Neutral Carbon Atom (C) For the second row, we have a neutral carbon atom (C). Carbon (C) has an atomic number of 6, so it has 6 protons. Since it is neutral, the number of electrons is equal to the number of protons, which is 6.

Analyzing Antimony Ion (Sb 3 − )
For the third row, we have an element with 51 protons and 54 electrons. The element with 51 protons is antimony (Sb). Since the number of electrons is 3 more than the number of protons, the ion has a 3- charge. Therefore, the symbol is Sb 3 − and it is an anion.

Completed Table Now, let's present the completed table:





symbol

atom or ion? check all that apply

number of protons
number of electrons



Mg 2 +

cation

12
10


C
neutral atom


6
6


Sb 3 −

anion

51
54


Examples
Understanding the composition of ions is crucial in various fields. For example, in environmental science, knowing the ionic composition of water helps in assessing its quality and potential pollutants. In medicine, the balance of ions like sodium (Na + ) and potassium (K + ) in the body is vital for nerve function and muscle contraction. In materials science, the properties of ionic compounds determine their suitability for different applications, such as in batteries or semiconductors.

Answered by GinnyAnswer | 2025-07-05

The missing information includes 12 protons and 10 electrons for Mg 2 + , 6 protons and 6 electrons for C, and the symbol Sb 3 − with 51 protons and 54 electrons. Each entry classifies either as a cation, neutral atom, or anion. The completed table accurately reflects this information.
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Answered by Anonymous | 2025-08-02