All questions of Classification of Elements and Periodicity in Properties for JAMB Exam

• a)
  Only physical properties
• b)
  Only chemical properties
• c)
  In both physical and chemical properties
• d)
  thermodynamic properties

• a)
  Cell
• b)
  Table
• c)
  Groups
• d)
  Periods

• A:

  Sixth

• B:

  First

• C:

  Seventh

• D:

  Second

The answer is a.

• a)
  Elements of group 7 and 8 were arranged on the basis of equivalent weights
• b)
  Some elements in the same group differ in their properties
• c)
  Elements were arranged on the basis of atomic weights
• d)
  The position of hydrogen was not justified

• a)
  p block
• b)
  s block
• c)
  f block
• d)
  d block

• a)
  Germanium
• b)
  Aluminium
• c)
  Gallium
• d)
  Sodium

• a)
  Mg, Cl
• b)
  Mg, Cu
• c)
  Mg, Be
• d)
  Mg, Na

• a)
  Newlands
• b)
  Lothar Meyer
• c)
  Henry Moseley
• d)
  Meyer

• a)
  F
• b)
  Si
• c)
  N
• d)
  B

• a)
  PH3
• b)
  H2S
• c)
  HI
• d)
  KH

• a)
  Germanium
• b)
  Magnesium
• c)
  Gallium
• d)
  Sodium

• a)
  2
• b)
  4
• c)
  5
• d)
  3

• a)
  halogen family
• b)
  oxo family
• c)
  chalcogen family
• d)
  peroxo family

• a)
  Gamma rays
• b)
  X-rays
• c)
  UV rays
• d)
  Infra red rays

• a)
  Trinity
• b)
  Trials
• c)
  Triads
• d)
  Diads

• a)
  (n-1) d^1-10 ns^0-2
• b)
  (n-2) d^1-10 (n-1) p⁶ ns²
• c)
  (n-1)s² p⁶ d ¹⁰ ns² np⁶ nd^1-10
• d)
  (n-2) d^1-10 (n-1) s² p⁶ d^{1 or 2} ns¹

• a)
  Gallium
• b)
  Sodium and germanium
• c)
  Gallium and germanium
• d)
  Germanium and Gold

• a)
  Hydration energy: Li > Na > K > Rb
• b)
  Ionization energy: Li > Na > K > Rb
• c)
  Atomic size: Li < Na < K < Rb
• d)
  Density: Li < Na < K < Rb

• a)
  Mass number
• b)
  Atomic weight
• c)
  Atomic number
• d)
  Ionic radius

• a)
  p block elements only
• b)
  s and p block elements only
• c)
  d block elements only
• d)
  s block elements only

• a)
  s-block
• b)
  d-block
• c)
  p-block
• d)
  f-block

• a)
  E: (1s² 2s² 2p⁶ 3s² 3p⁶ 4s²)
• b)
  (1s² 2s² 2p⁶ 3s² 3p³)
• c)
  (1s² 2s² 2p⁶ 3s² 3p¹)
• d)
  (1s² 2s² 2p⁶ 3s² 3p⁵)

• a)
  Across a period electropositivity of elements increases
• b)
  Across a period basic nature of oxides increases
• c)
  Across a period acidic nature of oxides increases
• d)
  Across a period metallic character increases

• a)
  Third element
• b)
  Fourth element
• c)
  Second element
• d)
  First element

• a)
  2, 8, 2
• b)
  2, 8, 4
• c)
  2, 8, 7
• d)
  2, 8, 8

• a)
  Na and Mg
• b)
  Mg and Al
• c)
  N and O
• d)
  Be and B

• a)
  Chalcogens
• b)
  Alkaline earth metals
• c)
  Alkali metals
• d)
  Halogens

• a)
  Decreases and then increases.
• b)
  Increases from top to bottom in group.
• c)
  Remains same for all elements of group.
• d)
  Decreases from top to bottom in group.

• a)
  contains replaceable H+ ion
• b)
  gives up a proton
• c)
  accepts OH– from water releasing proton
• d)
  combines with proton from water molecule

• a)
  XeF₃O₂
• b)
  XeFO
• c)
  XeF₂O₂
• d)
  XeF₂O₃

• a)
  Group 16
• b)
  Group 17
• c)
  Group 18
• d)
  Group 15

• a)
  Sulphur
• b)
  Silicon
• c)
  Bromine
• d)
  Chlorine

• a)
  Atomic mass
• b)
  Electronegativity
• c)
  Ionization energy
• d)
  Atomic radius

• a)
  Group 14
• b)
  Group 15
• c)
  Group 16
• d)
  Group 17

• a)
  3
• b)
  2
• c)
  1
• d)
  4

• a)
  properties that are characteristic of both metals and viscous liquids
• b)
  properties that are characteristic of both metals and plastics
• c)
  properties that are characteristic of both metals and nonmetals
• d)
  properties that are characteristic of both metals and gases

• a)
  Cl, P
• b)
  P,Cl
• c)
  P,S
• d)
  none

• a)
  Alkali metals form covalent bonds with oxygen.
• b)
  Alkali metals have relatively low first ionization energies
• c)
  Alkali metals forms oxides that act as basic anhydrides.
• d)
  Alkali metals usually have a +1 oxidation state

• a)
  Group 18 elements
• b)
  Group 2 elements
• c)
  Group 1 element
• d)
  Group 17 elements

• a)
  Fe > Mn > Co > Cr
• b)
  Mn > Fe > Cr > Co
• c)
  Cr > Mn > Co > Fe
• d)
  Co > Mn > Fe > Cr

• a)
  K⁺ > Na⁺ > Rb⁺ > Cs⁺
• b)
  Cs⁺ > Rb⁺ > K⁺ >Na⁺
• c)
  Rb⁺ > K⁺> Cs⁺ > Na⁺
• d)
  Na⁺ > K⁺ >Rb⁺ >Cs⁺

• a)
  Lithium
• b)
  Sodium
• c)
  Carbon
• d)
  Chlorine

• a)
  The frequencies of characteristic X-rays of elements against their atomic numbers.
• b)
  The square of the frequencies of characteristic X-rays of elements against their atomic numbers
• c)
  The square root of the frequencies of characteristic X-rays of elements against their atomic numbers
• d)
  The reciprocal of the frequencies of characteristic X-rays of elements against their atomic numbers.

• a)
  110
• b)
  118
• c)
  63
• d)
  105

• a)
  coordinate radius
• b)
  covalent radius
• c)
  van der waals’radius
• d)
  metallic radius

• a)
  Group 13 to 18
• b)
  Group 1 to 18
• c)
  Group 1 to 13
• d)
  Group 10 to 14

• a)
  Noble gases
• b)
  Halogens
• c)
  Transition metals
• d)
  Lanthanides and Actinides

• a)
  Alkali metals
• b)
  Lanthanoids
• c)
  Alkaline earth metals
• d)
  Transition elements)