Question : In which group are the non-metal elements placed in a vertical column on the right side of the periodic table?

Option 1: Group 1

Option 2: Group 2

Option 3: Group 17

Option 4: Group 3

Question : Electrons in the highest energy level of an atom are called ________.

Option 1: Valence protons

Option 2: Orbital protons

Option 3: Valence electrons

Option 4: Orbital electrons

Question : When did Dmitri Mendeleev invent the periodic table, ordering the symbols of the chemical elements according to their atomic weights?

Option 1: 1794

Option 2: 1869

Option 3: 1890

Option 4: 1779

Question : Hydrogen resembles the properties of which two groups of the periodic table?

Option 1: Group 2 and Group 17

Option 2: Group 1 and Group 3

Option 3: Group 1 and Group 17

Option 4: Group 2 and Group 4

Question : In which year did AEB de Chancourtois organise the elements by atomic weight by graphing the elements around a cylinder with a circumference of 16 units, corresponding to the weight of oxygen (O)?

Option 1: 1862

Option 2: 1860

Option 3: 1870

Option 4: 1868