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
Black_prince [1.1K]
3 years ago
7

What is the electron configuration of an element with atomic number 20?

Chemistry
2 answers:
Vedmedyk [2.9K]3 years ago
8 0
[Ar]4s^2
hope it helps

blagie [28]3 years ago
4 0

Answer:

 What is the electron configuration of an element with atomic number 20?  1s2 2s2 2p6 3s2 3p6 4s2

Explanation:

You might be interested in
Which process would produce a similar pathway? condensation dehydration decomposition melting
babymother [125]
It is A) Condensation
5 0
3 years ago
Read 2 more answers
Oak tree
Murljashka [212]
Oak tree, because it’s the primary producer
3 0
2 years ago
Read 2 more answers
During a spectrophotometric analysis of an unknown, you measure your solution's absorbance, and the value is higher than the hig
Reil [10]

Answer:

A) Dilute the unknown so that it will have an absorbance within the standard curve. Once the diluted unknown concentration is determined, the full strength concentration can be calculated if the dilution process is recorded. Beer's law only applies to dilute solutions, so diluting the unknown is better than making new standards.

Explanation:

Beer's law states that <em>absorbance is proportional to the concentrations of the absorbing species</em>. This is verified in the case of diluted solutions (0≤0.01 M) of most substances. <u>As a solution gets more concentrated, solute molecules interact between themselves because of their proximity. </u>When a molecule interacts with another, the change in their electric properties (including absorbance) is probable. That's why <u>the plot of absorbance versus concentration stops being a straight line</u>, and <u>Beer's law is no longer valid.</u>

Therefore, if the absorbance value is higher than the highest standard,  dilutions should be made. Once this concentration is determined, the full strength concentration can be calculated with the inverse of the dilution.

7 0
3 years ago
(there are 3 quetions) how is heat being transfered in:
solmaris [256]

Answer:3

Explanation: if I was like a rated wave

5 0
3 years ago
Read 2 more answers
Question 3 of 10
PIT_PIT [208]

Answer:

the moluculer formula is the answer

Explanation:

4 0
3 years ago
Other questions:
  • How many liters of 4.0 NaOH solution will react with 1.8 mol H2SO4
    12·1 answer
  • Which action is not an accomplishment of the Apollo missions?
    13·1 answer
  • The alkali metals react with the halogens to form ionic metal halides. what mass of potassium chloride forms when 5.11 l of chlo
    11·1 answer
  • What happens to water molecules that form the ice on a road when temperatures rise and the ice begins to melt?a)As temperature i
    12·2 answers
  • Please help! Will give brainliest!!!!!!
    11·1 answer
  • What was discovered first helium or samarium?
    11·1 answer
  • Which class of organic compound is least likely to be used as an organic solvent? aldehyde ketone alkyl halide ether
    7·2 answers
  • Solid ice will change to liquid water and then to gaseous steam when you add
    12·1 answer
  • 1) A sample of copper has a mass of 4.75 g and a volume
    6·1 answer
  • How long does it take for carbon monoxide to dissipate?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!