Trends

Question 1

Atoms,____,________,________

Answer 1

Shells, subshells, max no of e

Question 2

Name the shells

Answer 2

S,P,D,F

Question 3

Subshells in P orbitals

Answer 3

3, Px,Py,Pz

Question 4

Subshells in D orbitals

Answer 4

5,Dxy, Dyz, Dxz, Dx^2-Dy^2, Dz^2

Question 5

Order of Shielding effect in different orbitals

Answer 5

S>P>D>F

Question 6

The main reason for lanthanide contraction

Answer 6

Due to the presence of F- orbital.

Question 7

What is ionisation energy?

Answer 7

The energy required to remove an electron from the outermost shell of an isolated gaseous system.

Question 8

IE1 is ____ than IE2

Answer 8

Less than

Question 9

Factors affecting Ionisation enthalpy

Answer 9

1) Size
2) Electronic cong.
3) Penetration effect: Zeff inc then IE will also increase.

Question 10

Effect on lanthanide contraction due to IE

Answer 10

5d> 3d>4d( Sahi graph)

Question 11

S block will follow the general trend. Ture or False

Answer 11

True

Question 12

P block, Ie

Answer 12

The general trend should be followed, but Areas after 3D, 4D and 4f, will see some changes

Question 13

Which group has the highest IE

Answer 13

Inert group

Question 14

Which element has the lowest IE

Answer 14

Caesium (Cs)

Question 15

Reactivity is _____ Proportional to IE

Answer 15

Inversely

Question 16

Metallic character _____ Proportional to IE

Answer 16

Inversely