Classification of Elements Quiz

Choose the correct statements:

i. Lithium, Sodium and Potassium were one of the Dobereiner’s triads.

ii. Dobereiner’s triads were arranged in the descending order of their mass.

Choose the correct statements.

i. Mercury and Bromine are liquids at room temperature.

ii. In any period, atomic size of alkali metal is the highest.

iii. Cesium has the maximum ionization energy in the first group.

iv. In the third period, Magnesium has the maximum electron affinity.

An element belongs to 3rd period and group-13 of the periodic table. Which of the following properties will be shown by the element?

i. liquid, metallic

ii. solid, metallic

iii. solid, non-metallic

iv. good conductor of electricity

Which of the following statement/s is false?

i. Metals make up every element in the s, d, and p block.

ii. Non-metals create bonds by acquiring electrons, making them electronegative.

iii. Non-metal oxides typically have an alkaline character.

iv. Metals are pliable and effective heat and electricity conductors

Choose the correct statement/s.

i. The alkali metals are all bright, brittle, and highly reactive solids that easily lose their outermost electron to form cat ions with charge +1.

ii. Lanthanide and Actinides are called ‘Rare Earth Elements’.