Chemistry291

The atomic number of this element is 9. Explanation: From the electron configuration,1s22s22p5,we get (2+2+5=9) nine electrons. We know that ,in a neutral atom, the atomic number indicates the equal number of protons and electrons in a atom as the charge of protons is positive and the charge of electrons is negative.So,the above element's atomic number will be 9 and the element is F.

This atom has 9 electrons. Explanation: The given electron configuration is 1s22s22p5. Here ,we get four s electrons(2+2=4) and 5 p electrons.So,4+5 =9 electrons totally.That is it.

   The electron dot structure of carbon dioxide showing covalent bonding in a molecule of carbon dioxide,CO2, is given below: In CO2 electron dot structure of CO2,we have four bonds which are covalent bonds.Actually,we get two sigma bonds and two pi bonds. Explanation: CO2  Electron Dot Structure Setup Step-01:                  To draw the  CO2 electron dot structure  , we have to find out the  CO2 valence electrons  first.We express valence electrons as dots in  CO2 lewis dot structure . To get the valence electrons of carbon,we need to look at the electronic configuration of carbon. C(6)=1s²2s²2p² The highest value of principal quantum number here is n=2. The highest value of principal quantum number ,n , indicates the valence shell and we know the electrons in valence shell is called valence shell. The nunber of valence electrons in carbon is 4. Now,to draw the lewis dot structure of carbon,we need to imagine a square around carbon.                   口 We know a square has four side

  The electron dot structure of carbon dioxide which has the formula for CO2 is given below: Explanation: CO2 Lewis Structure Setup Step-01:                  To draw the  CO2 electron dot structure  , we have to find out the  CO2 valence electrons  first.We express valence electrons as dots in  CO2 lewis dot structure . To get the valence electrons of carbon,we need to look at the electronic configuration of carbon. C(6)=1s²2s²2p² The highest value of principal quantum number here is n=2. The highest value of principal quantum number ,n , indicates the valence shell and we know the electrons in valence shell is called valence shell. The nunber of valence electrons in carbon is 4. Now,to draw the lewis dot structure of carbon,we need to imagine a square around carbon.                   口 We know a square has four sides.At first,we have to place one valence electrons as dot to every side of that square before pairing up. Again, we have to find out the valence electrons of oxygen. To get