Question

- What happens as the quantum level increases (mark all that apply a. The orbital size increases b. The number of nodes increases and equals n-1 C. The electron energy increases d. The frequency of the wave increases e. The number of electrons needed to fill the shell increases In which pair do both compounds exhibit predominantly ionic bonding? A) PC15 and HCI B) Na2SO4 and BF3 Kl and 03 D) NaF and CO2 E) NaCl and Cao
please anser both correctly!!

Answer 1

=> The Principal quantum determines the Size of orbitass. As the value of no Increases, the size of orbitals also increases Proportionally. This 55) 45 > 35. => Node is the region where the probability of finding elections becomes Zero. => for radians oresitals we have spherical modes or => For Podefrostitas we have spherical as well as Planar nodes, or Anguler nodes! => The total number of radionodes is givenan. => The = n-6-1 - Where l quantum Number determine the number of Anguer modes, in an orbital. par) quantum Number determines the Number of 8f here cal or Radial Noder eg 3 px orbital has total - Total number of nodes = nol eng for 50 orbital we have total number of modes - n-1 =) 5-1=9 No. of Radial nodes = n-e-1 => 5-2-1-23 Nor of Angular modes - l = 2 Angular modes are also known as nodar plones. Radial nodes are known as nodal regions. - As the quantum level increases Number of Nodes also increases -

=> The Name of electron energy for ground state is given as: E, - - 1312 kJ/mole t22 - 1312 kJ/mole = 1318 323 kJ (mile (2) 2 t3 - - 1312 KI pmole z - 1314-145.77 kJ/mole (3,2 e (oc) 2 on n = nta Energy level. EOL, SO Note: - The negative value of Electronic energy Corresponds to attraction with nucleaus. Thus as quantum level increanes, the name of Energy also increase, with respect to ground state' I e Frequency is proportional to energy. Thus Frequency of ware increases as quantum level increases with respect to ground state. = Exe = Ezhe. (e) The number of electrons needed to fill the she also increones 8 i given as In? = n = Principer quantum No. eig K-sheu - 2(1)² = 2 L-sheu = 2(2] = 8. • M-shell = 2(3) ² = 18.

st -8 (1) pols & Hee Hocei = Covalent bonding. 25 Na sou & BE: Ionic 2 QNat sou ou : B sp² be Covalent Bonding (3) ki Ionic " Nat Ionic : 00 Covalent (Coordinate) 8=C=0 Covalent. cat Ionic Natc Ionic - In Ionic required. =) In Ionic electrons 8 Bonding metal & Non-metal are Bonding the metal completely looses non-metal completely geins dectrons.