1.

Two isotopes of Uranium have 92 electrons each and have 144, 148 neutrons respectively.Mass numbers of these two isotopes will be respectively what??​

Answer»

Answer:

236 and 240

Explanation:

MASS number = Number of protons(atomic number) + Number of neutrons

Mass number of 1st ISOTOPE = 92 + 144 = 236

Mass number of 2nd isotope = 92 + 148 = 240



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