Question

1. Give the ground-state electron configuration for carbon (atomic number 6) sa 82p 2 Give the ground-state electron configuration for fluorine (atomic number 9). 3. Give the ground-state electron configuration for magnesium (atomie number 12), 4. How many electrons does silicon have in its valence shell? Write valid Lewis (electron-dot) structures for each formula below. Show all electrons as dots and show al non-bonding electrons. 5. CC tetrachloroethylene CO2 carbon dioxide 7. CHO methanol 8. The structure of urea is shown below. Fill in any non-bonding valence electrons that are missing line-bond structure. H,N-C-NH2 9. The structure of urea is shown below. The carbon atom in urea is: 0 HİN-C-NH2 a. sp hybridized b. sp hybridized С. sphybridized d. not hybridized

Answer 1

The Atomic No of carbon-atom is The filling of electrons in the orbital of atom is based on Aufbau's principle The electrons are filled in an orbital in increasing order of their energies The increasing order of energies of some orbitals are given below is < 2s < 2p < 3s < 3p < 4s < 3d < 4p Atomic No of carbon atom is 6 Ground state electronic configuration of carbon atom is 1 s^2 2s^2 2p_x^1 2p_y^1 rightarrow 1 s^2 2s^2 2p)x^1 2p_y^1 The Filling of electron in an orbital also follows Hund's rule rightarrow The paring of electron in an orbital does not take place until each orbital has got 1 electron downarrow (in a subshell) (2) The ground state electronic configuration of fluorine is given below Atomic No of fluorine = 9 1 s^2 2s^2 2p_x^2 2p_y^2 2p_z^1 (3) The ground state electronic configuration of m h is given below (Atomic No = 12) 1 s^2 2s^2 2p_x^2 2p_y^2 2p_z^2 3 s^2