Type the correct answer in each box. use numerals instead of words. if necessary, use / for the fraction bar(s). if ∆abc and ∆gef are congruent, the value of x is and the value of y is .

What do isotopes of uranium have the same number of? what do they have a different number of? a) same number of protons; different number of electrons b) same number of protons; different number of neutrons c) same number of electrons; different number of protons d) same number of neutrons; different number of protons