Question 1
Cesium belongs to the ________ group of the periodic table.
◦ alkali metal
◦ alkaline earth metal
◦ halogen
◦ noble gas
Question 2
Choose the INCORRECT statement from those given below.
◦ Atoms retain their identity during a chemical reaction.
◦ All matter is composed of atoms.
◦ Atoms combine in small, whole-numbered ratios.
◦ All atoms of a given element have same mass.
◦ Different ratios of atoms produce different compounds.