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.
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Answer
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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.
Final Answer
- Number of protons: 13 - Number of electrons (in a neutral atom): 13 - Number of neutrons: 14 - Aluminum ion (Al³⁺) representation: $\boxed{ extrm{Al}^{3 +}}$
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