snbarbee06 snbarbee06
  • 11-02-2021
  • Chemistry
contestada

why does the second row of the periodic table have 8 elements​

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Snoopycatlover
Snoopycatlover Snoopycatlover
  • 11-02-2021

short asnwer:

here are 8 elements in period 2 because all those elements have electrons in the second shell and no electrons in the third shell.

Explanation:

There are certain rules for arranging atoms in shells 1) Maximum number of electrons in a shell is given by the formula 2n^2. 2) The outermost ( valence) shell can accomodate only 8 electrons.

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ivanadiaz07 ivanadiaz07
  • 11-02-2021

Answer: the nubers ad up

Explanation:

you count like 12345678

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