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Twelfth Grade (Grade 12) Periodic Table and Elements Questions

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Grade 12 Periodic Table and Elements

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In the Modern Periodic Table, the elements are arranged in order of                         .
  1. increasing mass
  2. increasing atomic volume
  3. increasing atomic number
  4. the alphabet
Grade 12 Periodic Table and Elements
Which of the following parameters governs the physical and chemical properties of elements?
  1. Atomic number
  2. Atomic weight
  3. Mass number
  4. Atomic radius
Grade 12 Periodic Table and Elements
Actinides belong to the following type of elements:
  1. s-block elements
  2. d-block elements
  3. f-block elements
  4. p-block elements
Grade 12 Periodic Table and Elements
The first attempt to classify elements was made by                .
  1. Mendeleev
  2. Neslands
  3. Lother Meyer
  4. Bobereiner
Grade 12 Periodic Table and Elements
Elements with atomic numbers shown in which pair have similar properties?
  1. 13, 31
  2. 11, 20
  3. 12, 10
  4. 21, 33
Grade 12 Periodic Table and Elements
Which element is most extensively used in semiconductors?
  1. Silicon
  2. Phosphorus
  3. Carbon
  4. Chlorine
Grade 12 Periodic Table and Elements
Which of the following expressions correctly describes the relationship between the atomic radius and nuclear charge?
  1. Atomic radius ∝ nuclear charge
  2. Atomic radius ∝ (1/nuclear charge)
  3. (1/Atomic radius) ∝ nuclear charge
  4. (1/Atomic radius) ∝ (1/nuclear charge)
Grade 12 Periodic Table and Elements
Which of the following elements is used for creating p-type semiconductors from a silicon lattice?
  1. Antimony
  2. Arsenic
  3. Phosphorus
  4. Gallium
Grade 12 Periodic Table and Elements
Which of the following material is used to create n-type semiconductors?
  1. Antimony
  2. Boron
  3. Aluminium
  4. Gallium
Grade 12 Periodic Table and Elements
Which of the following elements are used as dopants in the semiconducting industry?
  1. Boron and Phosphorus
  2. Sodium and Magnesium
  3. Chlorine and Bromine
  4. Helium and Xenon
Grade 12 Periodic Table and Elements
Which of the following lists elements in order of increasing electronegativity?
  1. C < N < O < F
  2. N < C < F < O
  3. O < N < C< F
  4. F < N < C < O
Grade 12 Periodic Table and Elements
What are the homonuclear diatomic elements?