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
ElenaW [278]
3 years ago
6

why do valence electrons form bonds to create molecules and compounds? A. they are weaker than the electrons found closer to th

e nucleus. B. they are smaller than other electrons. C. they are stronger than the electrons found closer to the nucleus D. They are smaller than other electrons.
Chemistry
2 answers:
Crazy boy [7]3 years ago
7 0

Answer:

grouping pairs

Explanation:

BlackZzzverrR [31]3 years ago
6 0

<u>Answer:</u>

<em>Valence electrons form bonds to create molecules and compounds because they are weaker than the electrons found closer to the nucleus. </em>

<u>Explanation:</u>

Electrons, being negatively charged particles definitely get attracted to the positively charged nucleus. <em>Thus the distance between electrons and nucleus determines the strength of bonding of electrons to the atom. </em>

Valence electrons are present in the outermost shell of the atom and thus the distance between the <em>nucleus and valence electrons is large when compared with the electrons in the inner shells. </em>

In order to form bonds to make molecules and compounds electrons should be weakly bonded to the parent atom. Thus the <em>weak bond with parent atom makes valence electrons the active participants in a chemical reaction. </em>

You might be interested in
Suppose that a 10-mL sample of a solution is to be tested for I− ion by addition of 1 drop (0.2 mL) of 0.13 M Pb(NO3)2.
Liono4ka [1.6K]

The minimum number of grams of I that must be present is ; 0.01836 * 10⁻³ mol

<u>Given data : </u>

Volume of solution to be tested for I-ion = 10 mL

Volume of  Pb(NO₃)₂ = 0.2 mL

molarity of Pb(NO₃)₂ = 0.13 M

<h3>Determine the number of I that must be present </h3>

First step : calculate conc of PB²⁺ ions in the solution

conc of PB²⁺ ions =  ( molarity of Pb(NO₃)₂ * volume of  Pb(NO₃)₂ ) / ( total volume )

                              = ( 0.13 * 0.2 ) / ( 10 + 0.2 )

                              = ( 0.026 ) / ( 10.2 )  = 0.002549 M

Next step :<u> </u><u>determine the</u><u> molarity of  I</u>

using the dissociation reaction of PbI₂

PbI₂(s) ---> Pb²⁺ (aq)  + 2I (aq)

also;  Ksp = [ Pb²⁺ ] [ I ]²  ---- ( 1 )

From the question the given value of Ksp = 8.49 * 10⁻⁹

Therefore equation ( 1 ) becomes

8.49 * 10⁻⁹ = ( 0.002549 ) * [ I ]²

[ I ] = √ ( 8.49 * 10⁻⁹ ) / ( 0.002549 )

      = 0.0018 M

Final step :<u> Determine the minimum number of grams of I </u>

moles of I = molarity of I * total volume

                 = 0.0018 M * 10.2 mL

                 = 0.01836 * 10⁻³ mol

Hence we can conclude that The minimum number of grams of I that must be present is ; 0.01836 * 10⁻³ mol

Learn more about Pb(NO₃)₂ : brainly.com/question/25071409

8 0
2 years ago
What types of materials are better at absorbing energy from radiation?
natta225 [31]

Answer:

Explanation:

Materials are clothes and heavy rope

3 0
3 years ago
Science science science science
In-s [12.5K]

Answer:

Sorry

Explanation:

Sorry this is not chemistry but I always try to answer but this time I can't I am so so sorry

4 0
3 years ago
Read 2 more answers
Which statement best describes a solution?
lara31 [8.8K]

A mixture having a uniform composition where the components can't be seen separately and all components are in the same state best describes a solution.

 

<span>In chemistry, a </span>solution<span> is a homogeneous mixture composed of two or more substances. In such a mixture, a solute is a substance dissolved in another substance, known as a solvent.</span>

 

The correct answer between all the choices given is the third choice or letter C. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.

6 0
4 years ago
Read 2 more answers
Iron Choose one: A. is alloyed with carbon and chromium to make stainless steel. B. was the first of the common metals (iron, al
Lostsunrise [7]

Answer:

A. is alloyed with carbon and chromium to make stainless steel.

Explanation:

Steel is an alloy formed mainly of iron and carbon but some other metals like chromium are also added in little amounts.

Is steel, the percentage of iron and carbon together is about 90% and the rest metals fall in the 10% part.

Although the cost of steel is low, it has a very high tensile strength and that's why it is used in tools, ships, buildings, trains and in various types of infrastructures.

7 0
3 years ago
Other questions:
  • How are elements arranged in the periodic table?
    12·2 answers
  • Explain how you can determine the number of protons electrons and neutrons an atom has by its mass number and atomic number
    6·1 answer
  • How many molecules are ther in 3.5 moles of Corbin dioxide
    7·1 answer
  • 5. Identifying the limiting reagent: Given the reaction 2Cu + S → Cu2S, if you had 3 moles of both Cu and S, which would you run
    9·1 answer
  • In terms of molecular motion, why does an increase in pressure lead to an increased solubility of a gas?
    12·1 answer
  • What is fusion energy
    8·2 answers
  • Please help me fast What is the Molarity of 100g of Vit. C (C6HBO6) with 2.5L of water?
    7·1 answer
  • To double-check a chemical in lab before using it, sniff near the opening of the container, true or false?
    15·1 answer
  • PLS HELP ASAP ON BOTH
    13·2 answers
  • What is the ph of H2?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!