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
nalin [4]
3 years ago
14

Which atom, selenium (Se) or Arsenic (As), has the higher electron affinity and why?

Chemistry
1 answer:
IrinaVladis [17]3 years ago
8 0

Answer:

5. Selenium, because it does not have a stable, half-filled p subshell and adding an electron does not decrease its stability.

Explanation:

Electron affinity is the amount of energy released when an isolated gaseous atom accepts electron to form the corresponding anion.

Selenium:-

The electronic configuration of the element is:-

[Ar]3d^{10}4s^24p^4

Arsenic:-

The electronic configuration of the element is:-

[Ar]3d^{10}4s^24p^3

The 4p orbital in case of arsenic is half filled which makes the element having more stability as compared to selenium.

Thus, selenium has higher electron affinity because adding electron does not decrease the stability as in case of arsenic.

You might be interested in
A bumblebee flies with a ground speed of 15.0 m/s . Calculate its speed in km/h.
zheka24 [161]
Speed in km/hr = 15 x 18
                            ------------
                                 5
             
                          =   54 km/hr.

Hope this helps!

5 0
3 years ago
Read 2 more answers
Which of the following statements about the greenhouse effect is false? Greenhouse gases include carbon dioxide, chlorofluorocar
7nadin3 [17]
B is definitely correct
5 0
3 years ago
This element is a liquid at room temperature.<br> (A) Hg<br> (B) Th<br> (C) Na<br> (D) Cl<br> (E) Co
gulaghasi [49]
A) Hg, or Mercury, is a liquid at room temperature. Hope this helps!!
7 0
3 years ago
Read 2 more answers
An atom of element A has 108 protons. What would the elements atomic number be?
marusya05 [52]

108 is the atomic number

3 0
3 years ago
If a bottle of olive oil contains 1.4 kg of olive oil, what is the volume, in milliliters ( mL ), of the olive oil?
Serhud [2]

We know that density of olive oil = 0.93 g/mL

Given that mass of olive oil = 1.4 kg or 1400 g because 1000 g = 1.0 kg

From the definition of density;

Volume = mass/ density

= 1400 g/ 0.93 g/mL

=1505 mL

7 0
3 years ago
Other questions:
  • power plants can be powered by fossil fuels, such as coal or natural gas, or nuclear power to produce steam to turn turbines to
    13·1 answer
  • Which best characterizes a crystal
    15·2 answers
  • Bromophenol blue is the indicator used in detecting the endpoint for the antacid analysis in this experiment. what is the expect
    12·1 answer
  • When an atom is netural the number of the ? and ? are the same <br><br> 7TH GRADE SCIENCE
    15·2 answers
  • 4Fe+3O2<br><br> I really have no idea how to do this.. HELP
    9·1 answer
  • 9. Triacylglycerols are
    9·1 answer
  • What is the main purpose of the nervous system?
    13·1 answer
  • The _________ energy of a substance is the total kinetic and potential energies of its atoms and/or molecules.
    11·1 answer
  • Why is the top ruler more reliable in measuring length than the bottom ruler?
    7·2 answers
  • Why does it smell like burning when i turn my heat on?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!