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julia-pushkina [17]
3 years ago
12

How does the number of each type of particle in a sodium ion compare with the number of each type of particle in a sodium atom?

Physics
1 answer:
anyanavicka [17]3 years ago
3 0
<h3><u>Answer and explanation;</u></h3>
  • <u><em>A neutral sodium atom contains 11 protons, 12 neutrons and 11 electrons. By removing an electron from this atom we get a positively charged Na+ ion that has a net charge of +1.</em></u> Thus; Sodium atom is neutral whereas sodium ion is a charged species with a charge of +1.
  • <u><em>Sodium ion is positively charged. In sodium ion, there are 11 protons and 12 neutrons but 10 electrons</em></u>, i.e., sodium ion contains lesser number of electrons. Additionally,the size of sodium ion is smaller than that of sodium atom.

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Answer:

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4.   0 m/s^{2}

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Explanation:

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From v= u + at where v is final velocity, u is initial velocity, a is acceleration and t is time.

Making a the subject we have

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Making a the subject we have

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Making t the subject we have

t=\frac {v-u}{a}

Substituting u=0m/s since at rest, v=15m/s and a=5 \frac {m}{s^{2}}

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Making a the subject we have

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Substituting u=20 since it’s at rest, v=20m/s and t=10 seconds

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Making t the subject we have

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