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
galben [10]
4 years ago
5

Which of the following particles does not have the same electron configuration as the others?

Chemistry
1 answer:
Dmitry [639]4 years ago
6 0

Answer:

D. Al^3+

Explanation:

All the other elements given have the same number of elecetron

K has 19 electrons, since it is given as K+, it means that K has lost one electon, therefore K has 18 electrons now

Cl has 17 electrond, since it is given Cl^1- it means Cl has gained one electron , therefore now Cl has 18 electrons

Ar normally has 18 electrons

Al has 13 electrons, since it is given has Al^3+ it means Al has lost 3 electons, therefore now Al has only 10 electrons

In oder to answer this question easily it is must to know first 20 elements of the Modern Peroidic Table

You might be interested in
Explain why vanadium (radius=134 pm) and copper (radius=128 pm) have nearly identical atomic radii, even though the atomic numbe
Viktor [21]
<span>There are few main factors affecting the atomic radii, the outermost electrons and the protons in the nucleus and also the shielding of the internal electrons. I would speculate that the difference in radii is given by the electron clouds since the electrons difference in these two elements is in the d orbital and both has at least 1 electron in the 4s (this 4s electron is the outermost electron in all the transition metals of this period). The atomic radio will be mostly dependent of these 4s electrons than in the d electrons. Besides that, you can see that increasing the atomic number will increase the number of protons in the nucleus decreasing the ratio of the atoms along a period. The Cu is an exception and will accommodate one of the 4s electrons in the p orbital.

</span><span>Regarding the density you can find the density of Cu = 8.96g/cm3 and vanadium = 6.0g/cm3. This also correlates with the idea that if these two atoms have similar volume and one has more mass (more protons;  density is the relationship between m/V), then a bigger mass for a similar volume will result in a bigger density.</span>
7 0
4 years ago
Complete and balance the equation for this single-displacement reaction. Phases are optional. Li+NaOH--&gt;
sdas [7]
The complete and <span>balanced equation for this single-displacement reaction would be written as follows:

</span><span>Li+NaOH--> LiOH + Na

In this reaction, lithium replace sodium in the compound sodium hydroxide forming lithium hydroxide and sodium metal as products. Hope this answers the question.</span>
6 0
4 years ago
Read 2 more answers
Which is NOT a reason why organisms communicate with one another?
Tpy6a [65]

Answer:

C. to find housing.

Explanation:

i hope this helps :)

3 0
3 years ago
Read 2 more answers
What type of bond is is formed when electrons move permanently from one atom to another upon reaction?
VLD [36.1K]
Ionic bonding would be the answer because they transfer electrons. This gives them a charge. If it loses electrons, it becomes an cation, with a positive charge. While if they gain an electron, they get a negative charge, and become a anion. Transferring an electron is losing or gaining, therefore your answer would be that since electrons are permanently being transferred, the answer is IONIC BOND.

Covalent bonds is a wrong answer because they share electrons, which gives them no charge (neutral). 

Also, metallic bonding is not the correct answer. 

So our final answer: A- Ionic bond
7 0
3 years ago
Read 2 more answers
Positive ions are called _____, and negative ions are called _____.
Artemon [7]

Answer:

Option B.

Explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • - prediction
    7·1 answer
  • Magnesium bromide is a binary ionic compound. From its formula, MgBr2, how do you know that
    10·2 answers
  • Is ibuprofen conductive in water?
    6·1 answer
  • Please help <br><br>look at the image<br>which one is it
    12·1 answer
  • WHAT IS A ELECTROLYTE?THIS IS FOR MY PRESENTATION
    14·2 answers
  • What is the shape of the waterline?
    13·1 answer
  • Help plez this was due yesterday
    10·1 answer
  • What is the formula for potassium citrate and how do you find it?
    5·2 answers
  • What other substance (besides salt) could you sprinkle over ice to affect how fast it melts? Describe how you would test the sub
    14·1 answer
  • Which of the following is an example of an insoluble substance being added to water?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!