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Electron Configuration of All Elements. We covered all the Electron Configuration of All Elements in this post for free so that you can practice well for the exam.
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mcq on Electron Configuration of All Elements
In which group and period of the modern Periodic Table does the element with atomic number 34 belong?
(a) Group 15 and 4th period
(b) Group 16 and 5th period
(c) Group 14 and 7th period
(d) Group 16 and 4th period
Option d – Group 16 and 4th period
The elements with atomic numbers 4, 12, 20, 38, 56, and 88 are found in which group?
(a) Alkali Metals
(c) Inert gases
(d) Halogens
Which of the following element pairs exhibit similar chemical properties?
(a) Sodium and Aluminium
(b) Argon and Potassium
(c) Nitrogen and Phosphorus
(d) Boron and Germanium
Option c – Nitrogen and Phosphorus
What is the atomic radius of a hydrogen Atom?
(a) 35 pm
(b) 36 pm
(c) 37 pm
(d) 38 pm
Option c – 37 pm
Which element is classified as a borderline element?
(a) Rubidium
(b) Technetium
(c) Polonium
(d) Zirconium
Option c – Polonium
If P, Q, and R form a Dobereiner triad with atomic weights of 35 and 127 for P and R, what is the atomic weight of Q?
(a) 40
(b) 60
(c) 81
(d) 120
Option c – 81
Which elements in the Periodic Table are the least chemically reactive?
(a) Representative elements
(b) Inert gases
(c) Transition elements
(d) Inner transition elements
Option b – Inert gases
What is the atomic number of the element in Group IA and the 3rd period?
(a) 3
(b) 11
(c) 19
(d) 20
Option b – 11
The nature and type of bonds formed by an element are determined by which electrons?
(a) Electrons in ‘s’ orbital
(b) Electrons in the valence shell
(c) Electrons in ‘p’ orbital
(d) Electrons in ‘d’ and ‘f’ orbitals
Option b – Electrons in the valence shell
Which element possesses a half-filled d-orbital?
(a) Vanadium
(b) Zinc
(c) Chromium
(d) Titanium
Option c – Chromium
Which of these is considered a transition element?
(a) Pb
(b) As
(c) Al
(d) Ni
Option d – Ni
Which period in the Periodic Table contains elements from s, p, and d blocks?
(a) 2nd period
(b) 3rd period
(c) 4th period
(d) 1st period
Option c – 4th period
How many electrons are present in the outermost shell of each Group IA element?
(a) 1
(b) 2
(c) 3
(d) 7
Option a – 1
Which scientist proposed that the properties of elements are a Periodic function of their atomic numbers?
(a) Dobereiner
(b) Newlands
(c) Mendeleev
(d) Henry Moseley
Option d – Henry Moseley
Which of the following is not a typical characteristic of Metals?
(a) Electronegativity
(b) Luster
(c) Ductility
(d) Malleability
Option a – Electronegativity
Which option correctly lists the increasing order of atomic radii?
(a) Be < B < O < N < Li
(b) O < B < N < Be < Li
(c) N < O < B < Be < Li
(d) O < N < B < Li < Be
Option c – N < O < B < Be < Li
Which group of elements is characterized by the last electron entering the s-orbital?
(a) Those ending in a p-orbital
(b) Those ending in a d-orbital
(c) Those ending in an f-orbital
(d) Those ending in an s-orbital
Option d – Those ending in an s-orbital
Identify the correct group based on the statements: A. All members are gaseous B. They remain chemically inert under normal conditions
(a) Group 18
(b) Group 17
(c) Group 14
(d) Group 16
Option a – Group 18
Which period is the longest in the modern Periodic Table?
(a) Third
(b) Fourth
(c) Sixth
(d) Seventh
Option c – Sixth
All of the following elements form univalent ions except:
(a) Li
(b) Na
(c) Mg
(d) K
Option c – Mg
Arrange B, Al, Mg, and K in increasing order of metallic character.
(a) B > Al > Mg > K
(b) Al > Mg > B > K
(c) Mg > Al > K > B
(d) K > Mg > Al > B
Option d – K > Mg > Al > B
Which of the following hydroxides shows the greatest basicity?
(a) Be(OH)₂
(b) Ba(OH)₂
(c) Ca(OH)₂
(d) Mg(OH)₂
Option b – Ba(OH)₂
An Atom with the configuration 2, 8, 5 is chemically similar to which element?
(a) F (9)
(b) Na (11)
(c) N (7)
(d) Ar (18)
Option c – N (7)
An element with atomic number 16 will show similar chemical behavior to:
(a) Ne (10)
(b) N (7)
(c) O (8)
(d) Be (4)
Option c – O (8)
Which of the following elements is least likely to lose an electron?
(a) Na
(b) F
(c) Mg
(d) Al
Option b – F
We covered all the electron configuration of all elements above in this post for free so that you can practice well for the exam.
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