1) the subatomic proton charge a) positive b) Negative c) neutral 2) no of energy level a) 10 b) 7 c) 5 d) 3 3) atom is electrically neutral bec a) no of proton =no of neutron b) no of electron =no of neutron c) no of proton =no of electron 4) the first scientist who discovered atomic theory a) rutrerford b) mosely c) mendlev d) dalton 5) sphinx is composed from a) sand stone b) lime stone 6) the chemical symbol of sodium a) S b) Na 7) the chemical symbol of phosphorus is a) k b) p

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