What is the mass number of an ion with 106 electrons, 158 neutrons, and a +1 charge?

The correct answer is 265.

Explanation:

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Let's solve this!

In the nucleus there will be 158 neutrons and as we know that in the atom there is the same amount of protons as there are electrons, there would be 106. But it says that it has a +1 charge with which we have 107 protons.

The mass of the atom will be 107 + 158 = 265.

We conclude that the correct answer is 265.

a). in this case, dh> 0 and sd> 0. if t becomes larger, the term "-tds" will become more negative. at some point, it is possible that -dts will be more negative than the dh is positive, and the reaction will become spontaneous. this is probably the correct answer, but you should look at all of the other possibilities and make sure of that.