Indicate if the atoms in each pair have the same number of proton...

Question

Indicate if the atoms in each pair have the same number of protons, neutrons, or electrons. (4.4, 4.5)

c. ⁴⁰₁₈Ar, ³⁹₁₇Cl

Accepted Answer

Welcome back, everyone. We need to consider the following pair of atoms below paladium. 110 and cadmium 112 determine if the atoms have equal numbers of protons electrons or neutrons. So looking at our first isotope again, paladium 110 given by its name, our mass number is 110. In the left hand exponent. And then in the left hand subscript, we have the value 46, which we want to recognize is our atomic number. Let's recall that our atomic number can be expressed by the symbol Z. So we would say Z is equal to 46 and recall that our atomic number tells us our number of protons, which we would say is equal to 46 in a neutral atom, which in this case, we do have a neutral atom of polonium because we're not given any charges, our number of protons equal our number of electrons. So we would say that for neutral Paladium, 110, we have 46 electrons as well. So so far, we've determined our number of protons in paladium, 110 being 46 as well as our number of electrons being we need our number of neutrons. And we're going to recall that our mass number is calculated as the sum of our protons plus neutrons. So in order to find our number of neutrons in paladium, 110 we would take our mass number being 110 and subtract from our number of protons. So we would have -46. So our difference between 110 and 46 is going to give us our number of neutrons equal to the value of 64. So now we know our number of neutrons in our isotope of paladium 110. And now we're going to compare to our second isotope given cadmium 112. So our mass number given is 112 in the left hand exponent. And then in our left hand subscript, we have a atomic number of 48. So based on this atomic number, we have, we can say that Z is equal to 48. And therefore, we would have our number of protons being equal to 48 and for neutral cadmium 112, we would have also 48 electrons. So, so far, we've determined our number of protons and our number of electrons. And now we need to figure out our number of neutrons by taking our given mass number of 112 and subtracting from our number of protons being 48. And from this difference, we'll find our number of neutrons also equal to 64 neutrons for cadmium 112. So overall, we can confirm that Paladium 110 and cadmium have only the same number of nuance being 64. Whereas they had different number of protons. For cadmium 1 12, we had 48 protons and eight electrons. And for paladium 110 we had 46 protons and 46 electrons. So our final answer is going to be that Paladium 110 and cadmium 112 have only the same number of neutrons being 64. So what's highlighted in yellow is our final answer? I hope that this made sense and let us know if you have any questions.

Indicate if the atoms in each pair have the same number of protons, neutrons, or electrons. (4.4, 4.5) c. ⁴⁰₁₈Ar, ³⁹₁₇Cl

Concetti chiave

Atomic Structure

Isotopes

Electron Configuration

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