Periodic Table

Q. What is the atomic mass of Oxygen approximately? (2019)
  • A. 16 u
  • B. 18 u
  • C. 14 u
  • D. 12 u
Q. What is the atomic mass of Sodium (Na)? (2021)
  • A. 22.99
  • B. 23.00
  • C. 24.00
  • D. 25.00
Q. What is the atomic number of Carbon? (2021)
  • A. 6
  • B. 12
  • C. 14
  • D. 8
Q. What is the atomic number of Oxygen?
  • A. 6
  • B. 8
  • C. 16
  • D. 12
Q. What is the common oxidation state of Alkaline earth metals? (2014) 2014
  • A. +1
  • B. +2
  • C. +3
  • D. 0
Q. What is the common oxidation state of Group 1 elements? (2021)
  • A. -1
  • B. 0
  • C. +1
  • D. +2
Q. What is the group number of Alkali metals in the periodic table? (2023)
  • A. 1
  • B. 2
  • C. 3
  • D. 0
Q. What is the group number of Halogens in the periodic table? (2021)
  • A. 16
  • B. 17
  • C. 18
  • D. 15
Q. What is the period number of Argon? (2020)
  • A. 2
  • B. 3
  • C. 4
  • D. 5
Q. What is the period number of Lithium in the periodic table? (2022)
  • A. 1
  • B. 2
  • C. 3
  • D. 4
Q. What is the period number of Lithium? (2016) 2016
  • A. 1
  • B. 2
  • C. 3
  • D. 4
Q. What is the period number of Sodium in the periodic table? (2017)
  • A. 1
  • B. 2
  • C. 3
  • D. 4
Q. What is the symbol for Gold?
  • A. Au
  • B. Ag
  • C. Pb
  • D. Fe
Q. What is the valency of Magnesium? (2015)
  • A. 1
  • B. 2
  • C. 3
  • D. 0
Q. What is the valency of Oxygen? (2021)
  • A. 1
  • B. 2
  • C. 3
  • D. 4
Q. Which element has the atomic number 11? (2022)
  • A. Sodium
  • B. Magnesium
  • C. Potassium
  • D. Calcium
Q. Which element has the atomic number 1?
  • A. Helium
  • B. Hydrogen
  • C. Lithium
  • D. Beryllium
Q. Which element has the highest atomic number in the first 20 elements? (2020)
  • A. Calcium
  • B. Potassium
  • C. Argon
  • D. Chlorine
Q. Which element has the lowest electronegativity? (2023)
  • A. Francium
  • B. Cesium
  • C. Lithium
  • D. Sodium
Q. Which element is found in Group 17 of the periodic table? (2022)
  • A. Sodium
  • B. Chlorine
  • C. Calcium
  • D. Magnesium
Q. Which element is represented by the symbol 'Fe'? (2019)
  • A. Fluorine
  • B. Francium
  • C. Iron
  • D. Fermium
Q. Which element is represented by the symbol 'K'? (2022)
  • A. Calcium
  • B. Potassium
  • C. Krypton
  • D. Iron
Q. Which group in the periodic table contains the noble gases? (2023)
  • A. Group 1
  • B. Group 2
  • C. Group 17
  • D. Group 18
Q. Which of the following elements is a halogen? (2017) 2017
  • A. Bromine
  • B. Barium
  • C. Bismuth
  • D. Boron
Q. Which of the following elements is a noble gas? (2021) 2021
  • A. Oxygen
  • B. Nitrogen
  • C. Neon
  • D. Hydrogen
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