13.2 Period 3 (Na to Ar)

Question 1

describe the reaction of period 3 elements with oxygen

Answer 1

they all react with oxygen to form oxides excet Cl and Ar
i.e MgO, Na2O2,

Question 2

describe the reaction of period 3 elements with water

Answer 2

sulphur, phosporous and argon do not react
aluminium and silicon react in powder form
H2 gas is released in the reaction

Question 3

describe the reaction of period 3 elements with chlorine

Answer 3

all elements except argon react with chlorine to form chlorides

Question 4

describe the reaction of oxides of period 3
elements with water;