QUESTION IMAGE
Question
10 matching 3 points please match the electron - configuration to the correct element 2 - 8 - 3 - 1 2 - 8 - 17 - 6 2 - 8 - 18 - 8 oxygen copper phosphorus krypton
Step1: Recall electron - configuration basics
The number of electrons in an atom is equal to its atomic number. The electron - configuration notation shows the number of electrons in each shell.
Step2: Analyze 2 - 8 - 3 - 1
The sum of electrons is \(2 + 8+3 + 1=14\). The atomic number 14 corresponds to Silicon, but it's not in the given options.
Step3: Analyze 2 - 8 - 17 - 6
The sum of electrons is \(2+8 + 17+6=33\). The atomic number 33 corresponds to Arsenic, not in the given options.
Step4: Analyze 2 - 8 - 18 - 8
The sum of electrons is \(2+8 + 18+8 = 36\). Krypton has an atomic number of 36. So 2 - 8 - 18 - 8 corresponds to Krypton.
Step5: Analyze 2 - 8
The sum of electrons is \(2 + 8=10\). Neon has an atomic number of 10, not in the given options.
Step6: Analyze 2 - 18 - 8 - 1
The sum of electrons is \(2+18 + 8+1=29\). Copper has an atomic number of 29. So 2 - 18 - 8 - 1 corresponds to Copper.
Step7: Analyze 2 -[SSE Completed, Client Connection Error][SSE Completed, Client Connection Error][LLM SSE On Failure]
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Step1: Recall electron - configuration basics
The number of electrons in an atom is equal to its atomic number. The electron - configuration notation shows the number of electrons in each shell.
Step2: Analyze 2 - 8 - 3 - 1
The sum of electrons is \(2 + 8+3 + 1=14\). The atomic number 14 corresponds to Silicon, but it's not in the given options.
Step3: Analyze 2 - 8 - 17 - 6
The sum of electrons is \(2+8 + 17+6=33\). The atomic number 33 corresponds to Arsenic, not in the given options.
Step4: Analyze 2 - 8 - 18 - 8
The sum of electrons is \(2+8 + 18+8 = 36\). Krypton has an atomic number of 36. So 2 - 8 - 18 - 8 corresponds to Krypton.
Step5: Analyze 2 - 8
The sum of electrons is \(2 + 8=10\). Neon has an atomic number of 10, not in the given options.
Step6: Analyze 2 - 18 - 8 - 1
The sum of electrons is \(2+18 + 8+1=29\). Copper has an atomic number of 29. So 2 - 18 - 8 - 1 corresponds to Copper.