Periodic Table is a systematic arrangement of chemical elements based on their atomic number, electron configurations, and recurring chemical properties. Organized into rows called periods and columns called groups, it allows scientists to predict the properties and behaviors of elements. Since its development by Dmitri Mendeleev in 1869, the periodic table has become a fundamental tool in chemistry, guiding research and education worldwide. Here are 50 Gk MCQs about periodic table.
Q.1 Who is credited for creating the first version of the periodic table?
A) Isaac Newton
B) Dmitri Mendeleev
C) Albert Einstein
D) Niels Bohr
Answer: B) Dmitri Mendeleev
Q.2 What is the atomic number of Hydrogen?
A) 2
B) 3
C) 1
D) 4
Answer: C) 1
Q.3 Which element has the chemical symbol “O”?
A) Ozone
B) Oxygen
C) Osmium
D) Oganesson
Answer: B) Oxygen (O)
Q.4 Which is the lightest element in the periodic table?
A) Helium
B) Hydrogen
C) Lithium
D) Beryllium
Answer: B) Hydrogen
(Atomic weight is around 1.008 atomic mass units (amu))
Q.5 What is the atomic number of Carbon?
A) 4
B) 12
C) 6
D) 8
Answer: C) 6
Q.6 Which element is named after a dwarf planet Pluto?
A) Fermium
B) Polonium
C) Plutonium
D) Palladium
Answer: C) Plutonium
Q.7 What is the heaviest naturally occurring element?
A) Uranium
B) Thorium
C) Plutonium
D) Radium
Answer: A) Uranium
(Atomic weight of 238 grams)
Q.8 Which group of periodic table contains the noble gases?
A) Group 1
B) Group 2
C) Group 17
D) Group 18
Answer: D) Group 18
Q.9 Which element has the highest electronegativity?
A) Fluorine
B) Oxygen
C) Nitrogen
D) Chlorine
Answer: A) Fluorine
(Electronegativity of Fluorine is 3.98)
Q.10 What is the chemical symbol for tungsten?
A) W
B) T
C) Tn
D) Wn
Answer: A) W
Q.11 How many alkali metals are there in periodic table?
A) Five
B) Six
C) Seven
D) Eight
Answer: B) Six
[Lithium (Li), Sodium (Na), Potassium (K), Rubidium (Rb), Cesium (Cs) and Francium (Fr)]
Q.12 What is the atomic number of Iron (Fe)?
A) 24
B) 26
C) 28
D) 30
Answer: B) 26
Q.13 Which element has the chemical symbol “He”?
A) Helium
B) Hydrogen
C) Holmium
D) Hafnium
Answer: A) Helium
Q.14 Which of the following element belong to halogen group?
A) Fluorine
B) Neon
C) Argon
D) Krypton
Answer: A) Fluorine
Q.15 What is the chemical symbol for Lead?
A) Pb
B) Ld
C) Pl
D) Lb
Answer: A) Pb
Q.16 Which element of periodic table is named after Japan?
A) Neon
B) Nickle
C) Sodium
D) Nihonium
Answer: D) Nihonium
Q.17 What is the atomic number of Neon?
A) 8
B) 10
C) 12
D) 14
Answer: B) 10
Q.18 Which element is known for its ability to form many compounds, including organic compounds?
A) Carbon
B) Silicon
C) Nitrogen
D) Phosphorus
Answer: A) Carbon
Q.19 Which of the following element is a metalloid?
A) Silicon
B) Iron
C) Sodium
D) Helium
Answer: A) Silicon
Q.20 Which of the following elements is a non-metal?
A) Potassium
B) Calcium
C) Chlorine
D) Copper
Answer: C) Chlorine
Q.21 What is the most abundant element in the Earth’s crust?
A) Iron
B) Oxygen
C) Silicon
D) Aluminum
Answer: B) Oxygen
(Oxygen is found in earth crust is [46. 1%])
Q.22 Which element is used in making semi-conductor devices?
A) Silicon
B) Copper
C) Silver
D) Gold
Answer: A) Silicon
Q.23 What is the atomic number of Nitrogen?
A) 5
B) 6
C) 7
D) 8
Answer: C) 7
Q.24 Which element is represented by the chemical symbol “K”?
A) Krypton
B) Potassium
C) Calcium
D) Helium
Answer: B) Potassium
Q.25 What is the chemical symbol for Silver?
A) Si
B) Au
C) Ag
D) Al
Answer: C) Ag
Q.26 Which element is known as “quicksilver”?
A) Mercury
B) Silver
C) Platinum
D) Tin
Answer: A) Mercury
Q.27 How many groups are there in periodic table?
A) 10
B) 12
C) 14
D) 18
Answer: D) 18
Q.28 How many noble gases are there in periodic table?
A) 6
B) 7
C) 8
D) 9
Answer: B) 7
[They are Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), Radon (Rn), and Oganesson (Og)]
Q.29 Which element is the most abundant in the universe?
A) Helium
B) Hydrogen
C) Oxygen
D) Carbon
Answer: B) Hydrogen
Q.30 Which group is also known as the alkaline earth metals?
A) Group 1
B) Group 2
C) Group 17
D) Group 18
Answer: B) Group 2
Q.31 Which element is the heaviest naturally occurring halogen?
A) Fluorine
B) Chlorine
C) Bromine
D) Astatine
Answer: D) Astatine (At)
Q.32 What is the chemical symbol for Tin?
A) Sn
B) Ti
C) Tn
D) Pt
Answer: A) Sn
Q.33 Which is the last element in periodic table?
A) Moscovium (Mc)
B) Tennessine (Ts)
C) Nihonium (Nh)
D) Oganesson (Og)
Answer: D) Oganesson (Og)
Q.34 Which element of periodic table is named after a city of Germany?
A) Thulium
B) Flerovium
C) Darmstadtium
D) Holmium
Answer: C) Darmstadtium (Ds)
(Darmstadtium (Ds) is named after Darmstadt, Germany, where it was first created in 1994)
Q.35 Which element has the highest melting point?
A) Tungsten
B) Carbon
C) Iron
D) Osmium
Answer: A) Tungsten
(Its melting point is 3,422°C or [6,191.6°F])
Q.36 What is the chemical symbol for Calcium?
A) Ca
B) C
C) Cl
D) Cu
Answer: A) Ca
Q.37 Which element of periodic table is named after moon?
A) Selenium
B) Helium
C) Sodium
D) Potassium
Answer: B) Selenium
(Selenium is a non-metal that is named after the Greek word for moon, selene. It was discovered in 1817 by Berzelius)
Q.38 Which of the following element is named after a scientist?
A) Lawrencium
B) Thorium
C) Francium
D) Rubidium
Answer: A) Lawrencium
Q.39 Which element has the chemical symbol “Ni”?
A) Nitrogen
B) Nickel
C) Neon
D) Niobium
Answer: B) Nickel
Q.40 Which element is used in making batteries?
A) Lithium
B) Sodium
C) Potassium
D) Magnesium
Answer: A) Lithium
Q.41 Which of the following element is a noble gas?
A) Neon
B) Oxygen
C) Hydrogen
D) Nitrogen
Answer: A) Neon
Q.42 What is the chemical symbol for Magnesium?
A) Mn
B) Mg
C) Mo
D) Md
Answer: B) Mg
Q.43 Which element is named after Earth?
A) Helium
B) Tellurium
C) Erbium
D) Caesium
Answer: B) Tellurium
Q.44 Which is the most malleable metal?
A) Silver
B) Mercury
C) Gold
D) Platinum
Answer: C) Gold
Q.45 Which element is the best conductor of electricity?
A) Platinum
B) Silver
C) Lead
D) Copper
Answer: B) Silver
Q.46 Which is the heaviest metal by density?
A) Osmium
B) Uranium
C) Radium
D) Lithium
Answer: C) Osmium
[With a density of 22.59 grams per cubic centimetre (g/cm^3)]
Q.47 Which is the only metal liquid in room temperature?
A) Silver
B) Mercury
C) Sodium
D) Potassium
Answer: B) Mercury
Q.48 Which among the following element not found in nature?
A) Radium
B) Hydrogen
C) Lithium
D) Carbon
Answer: B) Radium
Q.49 What is the chemical symbol for Zinc?
A) Zc
B) Zn
C) Zn
D) Zi
Answer: B) Zn
Q.50 Which of the following is an actinide element?
A) Uranium
B) Iron
C) Copper
D) Zinc
Answer: A) Uranium
These questions cover various aspects of the periodic table, including elements, their symbols, atomic numbers, and properties.
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