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ICSE Class 8 Answered

Match the atomic number 4,14,8,15,19 with the each of the following : (a) A solid non metal of valency 3 (b) A gas of the valence 2 (c) A metal of the valence 1 (d) A non metal of the valence 4 
Asked by meenajaipur9 | 23 May, 2020, 11:44: AM
answered-by-expert Expert Answer

(a) A solid non metal of valency 3

     Phosphorous (15): 2,8,5 

(b) A gas of the valency 2

      Oxygen (8): 2,6

(c) A metal of the valency 1

     Potassium (19): 2,8,8,1

(d) A non metal of the valency 4

      Silicon(14): 2,8,4
Answered by Varsha | 24 May, 2020, 03:10: PM

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