Math

QuestionTin-118 has 50 protons. How many neutrons does it have? Use the formula: neutrons = mass number - protons.

Studdy Solution

STEP 1

Assumptions1. Tin-118 refers to an isotope of Tin, where118 is the atomic mass number. . The atomic mass number is the sum of protons and neutrons.
3. The number of protons in Tin-118 is given as50.

STEP 2

First, we need to understand the relationship between atomic mass number, protons, and neutrons. The atomic mass number (A) is the sum of the number of protons (Z) and neutrons ().
A=Z+NA = Z + N

STEP 3

Now, we know the atomic mass number (A) and the number of protons (Z). We can rearrange the equation to solve for the number of neutrons ().
=AZ = A - Z

STEP 4

Now, plug in the given values for the atomic mass number (A) and the number of protons (Z) to calculate the number of neutrons ().
=11850 =118 -50

STEP 5

Calculate the number of neutrons ().
=11850=68 =118 -50 =68in-118 has68 neutrons.

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