QQuestionChemistry
QuestionChemistry
Atomic number of aluminum is 13 and mass number is 27.
Calculate the number of electrons, protons, and neutrons in its atom.
Represent the ion of this element.
over 1 year agoReport content
Answer
Full Solution Locked
Sign in to view the complete step-by-step solution and unlock all study resources.
Step 1:
\text{Number of protons} = 13
First, let's find the number of protons in an aluminum atom. The atomic number of aluminum is 13, which means there are 13 protons in the nucleus of an aluminum atom.
Step 2:
\text{Number of electrons} = 13
Since an atom is electrically neutral, the number of electrons in a neutral aluminum atom is equal to the number of protons. Therefore, there are also 13 electrons in a neutral aluminum atom.
Step 3:
\text{Number of neutrons} = \text{Mass number} - \text{Number of protons} = 27 - 13 = 14
To calculate the number of neutrons, we need to subtract the number of protons from the mass number. The mass number of aluminum is 27, so there are: neutrons in a neutral aluminum atom.
Step 4:
\text{Aluminum ion (Al³⁺):} \quad \boxed{ extrm{Al}^{3+}}
Now, let's represent the ion of this element. Aluminum can lose three electrons to form a + 3 ion, called the aluminum ion (Al³⁺). The charge of the ion is represented as a superscript on the top right corner of the chemical symbol.
Final Answer
- Number of protons: 13 - Number of electrons (in a neutral atom): 13 - Number of neutrons: 14 - Aluminum ion (Al³⁺) representation: $\boxed{ extrm{Al}^{3 +}}$
Need Help with Homework?
Stuck on a difficult problem? We've got you covered:
- Post your question or upload an image
- Get instant step-by-step solutions
- Learn from our AI and community of students