1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Neko [114]
3 years ago
11

According to the image, identify the number of neutrons in the most common isotope of aluminum.

Chemistry
1 answer:
wolverine [178]3 years ago
5 0

Answer:

The number of neutron in the Aluminium Isotope is :

B. 14

Explanation:

Isotopes : These are the atoms which have same atomic number but have different mass number.

<u>This image shows the average atomic mass of Al element because it is in decimals</u>.

Atomic mass = 26.98154

(Note : mass number of single isotope can never be in decimals)

It is the average of mass of different isotopes of Al

Major Isotopes of _{13}^{26.98154}\textrm{Al} are :

  1. _{13}^{26}\textrm{Al}......atomic mass = 26
  2. _{13}^{27}\textrm{Al}.......atomic mass = 27

mass of Al given in image(26.98) is nearly equal to mass of 2nd isotope(27)

mass of _{13}^{26.98154}\textrm{Al}\ \approx 27

Now calculate the neutron in _{13}^{27}\textrm{Al}

Number of neutron = mass number - atomic number

                                = 27 - 13

Number of neutron = 14

(Atomic mass is same as mass number)

You might be interested in
The job of the human heart is to circulate blood through all of the body's arteries, capillaries, and veins. The job of the huma
weeeeeb [17]
B
All cells new oxygen and blood is a way for them to get it 

3 0
3 years ago
Read 2 more answers
The table compares the number of electrons in two unknown neutral atoms.
Andrej [43]

Answer:

Both are highly reactive.

Explanation:

A has 1 valence electron D has 3

A is sodium D is aluminum

5 0
3 years ago
Read 2 more answers
POS MOLECULES SPEED UP WHEN ENERGY IS CREATED AND SLOW DOWN WHEN ENERGY IS DESTROYED True False? explain why​
Colt1911 [192]

Answer: Scientists use the term bioenergetics to describe the concept of energy flow (Figure 4.2) through living systems, such as cells. Cellular processes such as the building and breaking down of complex molecules occur through stepwise chemical reactions. Some of these chemical reactions are spontaneous and release energy, whereas others require energy to proceed. Just as living things must continually consume food to replenish their energy supplies, cells must continually produce more energy to replenish that used by the many energy-requiring chemical reactions that constantly take place. Together, all of the chemical reactions that take place inside cells, including those that consume or generate energy, are referred to as the cell’s metabolism.

5 0
2 years ago
Colligative properties depend upon the ____. Select one: a. nature of the solute b. nature of the solvent c. number of solute pa
Flauer [41]
The correct answer is C. Colligative properties only depend upon the number of solute particles in a solution but not on the identity or nature of the solute and solvent particles. I hope this anwers your question. 
3 0
3 years ago
Read 2 more answers
In addition to having a blue color, what other characteristic do Neptune and Uranus share?
Allisa [31]

Answer:

They are both planets made out of gas!

They both share methane, hydrogen and helium gases!

7 0
2 years ago
Read 2 more answers
Other questions:
  • In the reaction, 3Cu + 2Al3+ → 3Cu2+ + 2Al, which substance is being oxidized?
    6·1 answer
  • MORE HELP ANOTHER 20 POINTS AND BRAINLIEST
    13·1 answer
  • What experimental evidence led to the development of this atomic model
    11·1 answer
  • The isomerization of methylisonitrile to acetonitrile is first order in CH3NC. CH3NC(g) → CH3CN(g) The half life of the reaction
    8·1 answer
  • Which volume of 2.0 M NaOH(aq) is needed to completely neutralize 24 milliliters of 1.0 M HCl(aq)?
    5·1 answer
  • Arrange the following in order of increasing
    5·1 answer
  • what is the answer, don't have to show proof but explain how that's all!!!!!! will mark brainliest this is science class by the
    7·1 answer
  • Predict the reactants of this chemical reaction. That is, fill in the left side of the chemical equation.
    15·1 answer
  • ¿Qué son los lantánidos y actínidos?
    10·1 answer
  • True or False. In a parallel circuit, the voltage is the same anywhere in the circuit.
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!