Chapter 6.1 Periodic Table ( Form 1 )

1. It is a non-charged particle in the atomic structure

• Proton

• Electron

• Neutron

Which is true about molecules?

• Molecules combine with different atoms such as water

• The simplest molecule of matter cannot be broken down

• A molecule only joins the same type of atom

• Molecules unite physically

Periodic table is a method of grouping elements based on

• properties of metals and non-metals

• its ability to react with water

• in order to increase the number of protons

• chemical properties and physical properties

The following are the properties of rare gas EXCEPT

• It's a one type of atom

• Has low melting point and low boiling point

• Low density

• Soluble in water

All elements in groups 1-12 are metal except

(a)  

This element is the main ingredient used in the manufacture of the aircraft body

(a)  

All metals are in solid state except (a)   which is in liquid state.

Bronze is a mixture of 2 metal elements which are tin and (a)  

Which is correct about J ?

• The particles are positively charged

• It's called neutrons

• Has electric charge -1

• The relative mass is 1

(a)   is a physical property of metals that defines their ability to be hammered, pressed or rolled into thin sheets over without breaking