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3 years ago

8

If Aluminum has 13 protons, 14 neutrons and 13 electrons, what is its atomic mass? 26 14 27 13

2 answers:

Ilya [14]3 years ago

8 0

<u>Answer:</u>

<em>27 is its atomic mass</em>

<u>Explanation:</u>

Isotope in chemistry refers to a similar variant of same chemical element where they only differ in number of neutrons <em>while the number of protons remains the same. </em>

Since the <em>aluminum isotope consists 13 protons and 14 neutrons, the mass number of the aluminum isotope </em>would be equal to the sum of number of protons and neutrons present.

<em>As there are 13 protons and 14 neutrons so the mass number will be equal to 27.</em>

Anastaziya [24]3 years ago

5 0

Answer:

R: 27 u

ou 27g/mol

Explanation:

A massa atômica de um elemento é dada pela soma do número atômico (número de protons) com o número de neutrons. Assim:

A= 13+14 = 27

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