Igneous <span>rock ! Of course oh how i miss middle school.........</span>
Answer:
Z
Explanation:
Each shell can contain only a fixed number of electrons: The first shell can hold up to two electrons, the second shell can hold up to eight (2 + 6) electrons, the third shell can hold up to 18 (2 + 6 + 10) and so on.
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List of elements with electrons per shell.
Z 5
Element Boron
No. of electrons/shell 2, 3
Group 13
