Period 3 Patterns
Which Period 3 element has largest atomic radii?
Sodium
What is the observation when Na reacts with O2?
Yellow flame
Which Period 3 oxide has highest melting point?
silicon dioxide
Which chloride produces neutral solution?
Sodium
Choose 1-5
3
Which period 3 element has highest melting point?
Silicon
What is the product of Phosphorous reacting with chlorine?
PCl5
What is the product of SO2 reaction with water?
Sulfurous acid
Why can metal chlorides conduct electricity when molten?
freely moving ions
Choose 1-10
Which Period 3 element has the greatest electrical conductivity?
Aluminium
Which reaction makes blue flame?
Sulfur with oxygen
Which period 3 oxide is acidic but does not dissolve in water?
SiO2
What is the observation when PCl5 is added to water?
White fume
Choose 1-15
3
Which Period 3 element has the smallest ion radii?
Silicon
What is the observation for reaction of phosphorous with oxygen?
White flame
Which metal oxide has both ionic and covalent nature?
aluminium oxide
What is the product of SiCl4 reaction with water?
SiO2 and HCl
Choose 1-20
11
Why is first ionisation energy of aluminium less than magnesium ?
What is the product of Aluminium with chlorine reaction?
Al2Cl6
What causes change in type of bonding across the period?
electronegativity
What is the pH of MgCl2 in water?
6.5
Choose 1-100
23