Question

Elements P, Q, R and S have the atomic numbers 11, 1, 9 and 16 respectively. Write the chemical formula of the compounds formed between: (i) P and S (ii) Q and R​

Answer 1

Explanation:

☆We are going that elements P,Q,R and S, have atomatic numbers 11, 15, 17, and 18,

☆ We have to find non elements in given elements

☆ We know that atomic mubers of sodium = 11,

☆Therefore , P is Sodiume .

☆ Sodiume is metal and non metal .

☆ We know that atomic nimber of phosphours,P: 15

☆ Therefore Q, is phousphours .

☆ It is non metal becouse it is reqiuerd 3 electrons to complete their otict atomic Number

of chloride : 17,

☆Therefore element R, is chlorides .

☆ it is non metal it required one electron to complete their octect Atomic numbers of

organes : 18

i hope its helpfull....