science
Grade-9
Easy
Question
The electronic configuration of an element is 2, 8, 13, 1. Which of the following is similar to the above configuration?
- Mn
- Cu
- Zn
- Cr
Hint:
Cr is an atom that has an electronic shell structure 2, 3, 13, and 1.
The correct answer is: Cr
- Chromium is an element that has the atomic number 24.
- It has 2 electrons in the first shell, 8 electrons in the second shell, 13 electrons in the third shell, and one electron in the last shell.
- So the electronic shell structure of Cr is 2, 8, 13, and 1.
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