I need help naming this element & electron config.....?

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I need help naming this element & electron config.....?

A aton of a element has 2 electrons in the 1st energy level & 5 electrons in the 2nd enegry level. Write the elctron configuration for this atom & name the element. How many unpaired electrons does a atom of this element have?

2007-03-21 13:47:52 · 2 answers · asked by truckin_90 2 in Science & Mathematics ➔ Chemistry

2 answers

1s2, 2s2, 2p3

It is nitrogen.

It has 3 unpaired elections as shells 1s, 2s are full and less than half full for the 2p shell and wherefor they are unpaired.

2007-03-21 14:14:41 · answer #1 · answered by Mr Hex Vision 7 · 0⤊ 0⤋

Electron Configuration: 1s2 2s2p3
Electrons per Energy Level: 2,5

Nitrogen...

It has 3 unpaired electrons...

2007-03-21 20:59:30 · answer #2 · answered by Brewmaster 4 · 0⤊ 1⤋