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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
Grade 12 Periodic Table and Elements
Grade 12 Periodic Table and Elements
Grade 12 Periodic Table and Elements
Grade 12 Periodic Table and Elements
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 expressions correctly describes the relationship between the atomic radius and nuclear charge?
1. Atomic radius $prop$ nuclear charge
2. Atomic radius $prop$ (1/nuclear charge)
3. (1/Atomic radius) $prop$ nuclear charge
4. (1/Atomic radius) $prop$ (1/nuclear charge)
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

This question is a part of a group with common instructions. View group »

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
Grade 12 Periodic Table and 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
Grade 12 Periodic Table and Elements
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