WAEC - Physics (1994 - No. 29) | ExamPlay

WAEC - Physics (1994 - No. 29)

The nucleon number and the proton number of a neutral atom of an element are 238 and 92 respectively. What is the number of neutrons in the atom?

330

238

146

119

73

Тайлбар

238 - 92 = 146

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