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This Question Refers to the Elements of the Periodic Table with Atomic Number from 3 to 18. Some of the Elements Are Shown by Letters, but the Letters Are Not the Usual Symbols of the Elements. - Chemistry

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ConceptPeriodic Properties and Variations of Properties:- Physical and Chemical

Question

This question refers to the elements of the periodic table with atomic number from 3 to 18. Some of the elements are shown by letters, but the letters are not the usual symbols of the elements.

3 4 5 6 7 8 9 10
A B C D E F G H
11 12 13 14 15 16 17 18
I J K L M N O P

Which of these:
(a) have most electronegative element.
(b) is a halogen?
(c) is an alkali metal?
(d) is an element with valency 4?
(e) have least ionization energy?
(f) have least atomic size in period 3.

Solution

(a) Noble gases- H and P
(b) Halogens- G and O
(c) Alkali metals - A and I
(d) D and L have valency of 4
(e) I with atomic number 11.
(f) Cl has the least atomic size in period 3 with atomic number 17.

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Solution This Question Refers to the Elements of the Periodic Table with Atomic Number from 3 to 18. Some of the Elements Are Shown by Letters, but the Letters Are Not the Usual Symbols of the Elements. Concept: Periodic Properties and Variations of Properties:- Physical and Chemical.
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