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
Lunna [17]
3 years ago
5

Which of the following elements would exhibit the greatest shielding effect?

Chemistry
2 answers:
ValentinkaMS [17]3 years ago
5 0
Rubidium because it is lower on the periodic table and therefore has more electrons to shield the valence electrons from the positive core
Korolek [52]3 years ago
5 0

Answer: Option (D) is the correct answer.

Explanation:

Shielding effect is the effect in which nucleus of an atom is surrounded by number of electrons in such a manner that there will be decrease in attraction between nucleus and valence electrons.

So, more is the number of shells present in an atom more will be its shielding effect. Whereas smaller is the size of atom more will be attraction between its nucleus and valence electrons. So, it would be difficult to remove an electron from the valence shell.

For example, rubidium is larger in size so it has more number of shells and thus more shielding effect.

Thus, we can conclude that out of the given options rubidium would exhibit the greatest shielding effect.

You might be interested in
Please help thank you
Fynjy0 [20]

Answer:

D

Explanation:

8 0
3 years ago
How could a synthetic material such as Acegram affect society?
pantera1 [17]

Explanation:

Synthetic fiber or synthetic fibre (in British English; see spelling differences) are fibers made by humans through chemical synthesis, as opposed to natural fibers that are directly derived from living organisms. They are the result of extensive research by scientists to improve upon naturally occurring animal and plant fibers. In general, synthetic fibers are created by extruding fiber-forming materials through spinnerets, forming a fiber. These are called synthetic or artificial fibers. Synthetic fibers are created by a process known as polymerization, which involves combining monomers to make a long chain or polymer. The word polymer comes from a Greek prefix "poly" which means "many" and suffix "mer" which means "single units". (Note: each single unit of a polymer is called a monomer). There are two types of polymerization: linear polymerization and cross-linked polymerization.

8 0
3 years ago
Which acid has the largest ka.
lbvjy [14]

dissociation of proton from the acid depends upon the central atoms's electronegativity

More is the electronegativity of halogen ⇒ more is its pull on the oxygen ⇒ easier will the bond breakage of O-H ⇒ higher the acidity

In terms of E.N :

Cl > Br > I

so HClO₃ is highest acidity with the highest Ka value

7 0
4 years ago
A solution is made by dissolving 25.20 g of aluminum acetate in 185.0 mL of water. What is the concentration of acetate ions?
Andreas93 [3]
To answer this question, you need to know the aluminum acetate weight and formula. Molecular weight of aluminum acetate is 204.11g/mol, so the concentration should be: (25.20/204.11 )/(0.185l) = 0.1234 mol/0.185l= 0.6673 M<span>

</span>The aluminum acetate Al(C2H3O2)3 which mean for one aluminum acetate there will be 3 acetate ion. The concentration of acetate should be: 0.6673 M= 2M
4 0
3 years ago
Explain what would happen in Step 2 if the cylinder were heated with the plunger held steady.
Svetradugi [14.3K]

Answer:

be more descriptive

Explanation:

4 0
3 years ago
Other questions:
  • What happens when a cold drink sits in a hot room?
    7·2 answers
  • Over a period of time a student observed a small tadpole changing into a frog. Which of the following explains the physical chan
    12·2 answers
  • You need to do a chemical reaction at 25°C. The thermometer in your water bath reads 50°F. What must you do? (°F = 9/5 °C + 32 a
    5·1 answer
  • What are the spectator ions in 2H+ + SO42- + Ca2+ + 21 → CaSO4 + 2H+ + 21-?
    12·2 answers
  • Pcl5 exist but ncl5 does not.why?
    10·1 answer
  • HELP MEEEEEEEEEEEEEEE
    11·1 answer
  • Calculate the food energy (joules/
    11·1 answer
  • An ion has 14 protons, 15 electrons, and 14 neutrons. What charge does this ion have?
    14·1 answer
  • How does the radiation from radioisotopes cause damage to human tissue?
    13·1 answer
  • Balance the Following C₇H₁₆ + O₂ ---&gt; CO₂ + H₂0
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!