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
aivan3 [116]
3 years ago
9

Which element has the following noble gas configuration:

Chemistry
1 answer:
aniked [119]3 years ago
8 0
Einsteinium Would be your correct Answer.The electron Configuration [Ra] 7s2 5f8 is Not Valid because Ra is basically 7s2. However, you have Ra 7s2 5f8. You can never repeat an electron.
You might be interested in
Which one of the following represents an acceptable set of quantum numbers for an electron in an atom? (arranged as n, l, ml, an
vfiekz [6]
First, since l = n-1,
5,4,-5,1/2 and 2,1,0,1/2 are the only answer choices left.
Next, since ml = -l to l,
2,1,0,1/2
is the answer because in 5,4,-5,1/2, the ml value of -5 is not in the range of -4 to 4, as notes by the value 4 for l.
8 0
3 years ago
If I add water to 100mL of a 0.15M NaOH solution until the final volume is 150mL, what will the molarity of the diluted solution
Mars2501 [29]

Answer : A

0,15 moles of NaOH -------in-------1000ml

x moles of NaOH ---------in-------100ml

x= 0,015 moles of NaOH

final volume =150ml

0,015 moles of NaOH -------in------150ml

x moles of NaOH ------in--------1000ml

x= 0,1 moles of NaOH

7 0
3 years ago
An element is any substance that cannot be broken down into simpler substances. The smallest unit of an element is called an ___
Svetradugi [14.3K]

Answer:

An Atom

Explanation:

An atom is the smallest unit of matter

3 0
3 years ago
Fill in the blanks <br> At rest the frog breathes through________​
Mama L [17]

Answer:

a process called predominate?

5 0
3 years ago
Read 2 more answers
Referencing the reasoning you used from #1, explain the difference between objects that feel hot and those that
dezoksy [38]

Answer:

The temperature of the cold water is lower than the warm one. So, when we put the hand in the warm from the cold water, our hand will absorb heat, causing the hand to feel hot. Thus, we can conclude that the more heat it absorbs, the more hotter it is. Whereas the more heat it releases, the colder it is.

6 0
3 years ago
Other questions:
  • How many atoms are in 3Mg(OH)2
    11·1 answer
  • What is the inner core description
    5·1 answer
  • The molecular mass of propane-1,2-diol is 76.1 amuamu . Calculate the molecular mass of propane-1,3-diol, an isomer of propane-1
    6·2 answers
  • Give the net ionic equation for the reaction (if any) that occurs when aqueous solutions of Al(C2H3O2)3 and LiNO3 are mixed. Giv
    12·2 answers
  • Determine how many gmol, kmol, and lbmols there are in 50 kilograms of n-hexane.
    10·1 answer
  • If 2g of an isotope has a half life of 7days,the half life of 1g of sample will be?
    12·1 answer
  • Solve and round to the correct number of significant figures: 129 ÷ 29.20
    11·1 answer
  • A certain chemical contains 46.30% chlorine, 47.05% carbon, 6.63% hydrogen. What is the molecular formula of the compound? The m
    12·1 answer
  • 2. What are some common properties of metals, nonmetals, and semimetals?
    15·2 answers
  • Copper can be also be made by reacting copper oxide with methane
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!