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
iogann1982 [59]
3 years ago
10

A neutral atom posseses an atomic number of 15 and an atomic mass of 31 3 electrons are gained

Chemistry
1 answer:
kodGreya [7K]3 years ago
8 0

Answer:I believe the correct answer from the choices listed above is option D. A

Explanation:neutral atom possesses an atomic number of 15 and an atomic mass of 31.Three electrons are gained. This conversion results to a negatively charged ion.

You might be interested in
Which of these is an example of how engineers have affected society?
Levart [38]
You can eliminate A, C, and D almost instantly if you know that engineers are construction workers. The answer is B.
8 0
3 years ago
Read 2 more answers
How many moles of calcium (Ca) atoms are there in 77.4 g of Ca?
Vinvika [58]
Lar mass of Ca<span> = 40.08 </span>grams/mole 77.4 g Ca<span> * ( 1 </span>mole Ca<span>/ 40.08 ... n = m / M 1mol </span>Ca<span>weights 40 gmol-1 n = 77,4 / 40 = 1.93 </span>mol<span>.</span>
8 0
3 years ago
Read 2 more answers
What is the pH of a 2.0 x 10^-4 M solution of nitric acid (HNO3)
Semmy [17]

Hello!

datos:

Molarity = 2.0*10^{-4}\:M\:(mol/L)


ps: The ionization constant of the nitric acid is strong (100% ionized in water) or completely dissociates in water, so the pH will be:

pH = - log\:[H_3O^+]

pH = - log\:[2*10^{-4}]

pH = 4 - log\:2

pH = 4 - 0.30

\boxed{\boxed{pH = 3.70}}\end{array}}\qquad\checkmark

Note:. The pH <7, then we have an acidic solution.

I Hope this helps, greetings ... DexteR!

3 0
3 years ago
Read 2 more answers
Describe the relationship between the radius of a cation and that of the atom from which it is formed. a. cations are much small
koban [17]
<h3><u>Answer;</u></h3>

Cations are much smaller than their corresponding parent

<h3><u>Explanation;</u></h3>
  • Parent atom has more electrons and thus the effective nuclear charge on each electron is less.
  • When a cation is formed electron(s) is/are lost. Thus the effective nuclear charge or simply put, the attraction of the nucleus towards the electrons increases. Therefore, due to greater pull, the nucleus pulls the shells towards it, there by reducing the size, which makes cations smaller than their corresponding parent.
3 0
2 years ago
As an electron gains energy, it becomes excited and jumps to a lower energy level?
Maru [420]

Yes if you add an energy to an electron the electron will become excited, and it will jump to its highest level then go back down releasing  energy


3 0
2 years ago
Read 2 more answers
Other questions:
  • WILL MARK BRAINIEST! 18 POINTS! NEED IN 15 MINUTES!
    6·1 answer
  • Single-crystal sapphire has a melting point of aorund 2323K what is the melting point in degrees Celsius?
    14·1 answer
  • What is the standard cell notation of a galvanic cell made with zinc (Zn) and aluminum (Al)?
    9·2 answers
  • Predict the energy trend as a substance changes from a solid to liquid to gas on this graph.
    9·2 answers
  • What are many earthquakes intended to do?
    10·2 answers
  • A certain element consists of two stable isotopes. The first has atomic mass of 7.02 amu and a percent natural abundance of 92.6
    12·1 answer
  • Which method can be used to separate a mixture of ethanol and water into its
    14·2 answers
  • Examination reveals that 180.2 g/mol of glucose contains 72.1 grams of carbon, 96 g/mol of oxygen and the remainder is hydrogen.
    11·1 answer
  • Can anyone please help
    15·1 answer
  • If 17. 6 g of hcl are used to produce a 14. 5 l solution, what is the ph of the solution?.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!