ICSE Class 9 Chemistry Question 22 of 39

Atomic Structure and Chemical Bonding — Question 34

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34
Question

Question 20

Complete the following table relating to the atomic structure of some elements.

Element SymbolAtomic NumberMass NumberNumber of NeutronsNumber of ElectronsNumber of Protons
Li36  
Cl17 20
Na  12 11
Al 27  13
S 3216
Answer
Element SymbolAtomic NumberMass NumberNumber of neutronsNumber of electronsNumber of protons
Li36333
Cl1737201717
Na1123121111
Al1327141313
S1632161616