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
alexgriva [62]
3 years ago
5

How many electrons can exist in the second shell surrounding an atomic nucleus?

Chemistry
1 answer:
Misha Larkins [42]3 years ago
6 0
It depends on what the element is. But the maximum number of electrons an atom can hold for its second shell is 8
You might be interested in
Which compares the problem associated with radioactive waste created from generating electricity using fusion reactions to waste
uysha [10]

Answer:

hello good person

Explanation:

8 0
3 years ago
Rank the ions in order of increasing basicity: CH3NH-, CH3CH2-, CH30-
Alexxx [7]

In order to find out the ranking of ions basicity, check the pKa values of each ions. The principle that you need to remember is that the stronger the acid the weaker the corresponding conjugate base. The pKa dictates acid value of the compound. The answer would be CH3NH, CH3O-, and CH3CH2-. 

3 0
3 years ago
In an experiment, a student needs 250.0 mL of a 0.100 M copper (II) chloride solution. A stock solution of 2.00 M copper (II) ch
LekaFEV [45]

Answer : The volume of stock solution needed are, 12.5 mL

Explanation :

Formula used :

M_1V_1=M_2V_2

where,

M_1\text{ and }V_1 are the initial molarity and volume of copper (II) chloride.

M_2\text{ and }V_2 are the final molarity and volume of stock solution of copper (II) chloride.

We are given:

M_1=0.100M\\V_1=250.0mL\\M_2=2.00M\\V_2=?

Putting values in above equation, we get:

0.100M\times 250.0mL=2.00M\times V_2\\\\V_2=12.5mL

Hence, the volume of stock solution needed are, 12.5 mL

8 0
3 years ago
The shielding of electrons gives rise to an effective nuclear charge, Zeff, which explains why boron is larger than oxygen. Esti
Vesna [10]

Zeff = Z - S

Here, Z is the number of protons in the nucleus, that is, atomic number, and S is the number of nonvalence electrons.

For boron, the electronic configuration is 1s₂ 2s₂ 2p₄

Z = 5, S = 2

Zeff = 5-2 = +3

For O, electronic configuration is 1s₂ 2s₂ 2p₄

Z = 8, S = 2

Zeff = 8-2 = +6

Hence, the correct answer is second option, that is, +3 and +6, the Zeff of boron is smaller in comparison to O, thus, boron exhibits a bigger size than O.

3 0
3 years ago
What is the number of proton in this atom​
Vilka [71]

Answer:

There are 20 protons

Explanation:

4 0
3 years ago
Other questions:
  • Compare the three atom diagrams. which one shows the electron with the highest potential energy
    8·1 answer
  • Please Help! 30 PTS. for correct answer and best explanation!
    13·2 answers
  • if you were trying to heat soup would you want to use a good thermal conductor or good thermal insulator? explain your answer
    6·2 answers
  • What is the balanced equation for solid ammonium nitrate (NH4NO3) decomposes explosively to form nitrogen gas, oxygen gas, and w
    12·1 answer
  • WILL GIVE BRAINLIEST!!!
    8·1 answer
  • Quantum theory states that _____. A. electrons orbit the nucleus of an atom B. electrons cannot be created or destroyed C. elect
    13·1 answer
  • Which of the following would lose heat the fastest?
    11·1 answer
  • The color of a star could give hints to<br><br> mass<br> temperature<br> brightness<br> density
    10·2 answers
  • Can someone give me a simple example of a exothermic reaction? Would a campfire be one?
    7·1 answer
  • Can someone answer these for me I’ll mark you brainliset or whatever it’s called lol I rlly need to get these right
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!