Determine the charge of each atom given the following 8 protons and 6 electrons 12 protons and 14 electrons 5 protons and 5 electrons
The Correct Answer and Explanation is:
Charges of the Atoms:
- 8 protons and 6 electrons → Charge: +2
- 12 protons and 14 electrons → Charge: –2
- 5 protons and 5 electrons → Charge: 0
Explanation:
In an atom, the number of protons determines its identity and positive charge, while the number of electrons determines its negative charge. The overall net charge of an atom is the difference between the number of protons (positive charges) and electrons (negative charges). Protons carry a charge of +1, while electrons carry a charge of –1.
To find the charge of an atom, subtract the number of electrons from the number of protons: Charge=Protons−Electrons\text{Charge} = \text{Protons} – \text{Electrons}Charge=Protons−Electrons
Example 1: 8 protons and 6 electrons
Charge=8−6=+2\text{Charge} = 8 – 6 = +2Charge=8−6=+2
This atom has two more protons than electrons, resulting in a net positive charge of +2. This is a cation, meaning it has lost electrons.
Example 2: 12 protons and 14 electrons
Charge=12−14=−2\text{Charge} = 12 – 14 = -2Charge=12−14=−2
This atom has two more electrons than protons, giving it a net negative charge of –2. This is an anion, which has gained electrons.
Example 3: 5 protons and 5 electrons
Charge=5−5=0\text{Charge} = 5 – 5 = 0Charge=5−5=0
The number of protons equals the number of electrons, resulting in a neutral atom with no overall charge.
These concepts are foundational in chemistry, especially when studying ions and their roles in chemical bonding, reactivity, and the structure of compounds. Understanding how to determine the charge of an atom is essential for predicting how atoms will interact in chemical reactions
