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
Elza [17]
3 years ago
7

Electrons always fill orbitals in the same order. Each s orbital holds 2 electrons, each set of p orbitals holds 6 electrons, ea

ch set of d orbitals holds 10 electrons, and each set of f orbitals holds 14 electrons. The order in which orbitals are filled, from first to last, is:
1s 2s 2p 3s 3p 4s 3d 4p 5s 4d 5p 6s 4f 5d 6p 7s 5f 6d 7p

To what element does the following electron configuration correspond?

1s22s22p4

A. aluminum: 13 electrons
B. oxygen: 8 electrons
C. boron: 5 electrons

Chemistry
2 answers:
Slav-nsk [51]3 years ago
6 0
Answer is B. oxygen with 8 electrons
arsen [322]3 years ago
4 0
Oxygen is the answer :)

You might be interested in
An atom that normally has __________ electrons in its outer (valence) shell tends not to form chemical bonds with other atoms.
goblinko [34]
8 valence shell electrons.
5 0
3 years ago
How many moles of tin atoms are there in 250 grams of tin?
joja [24]

250gTi x (1mol/47.87 [molar mass]) =5.22247 moles

4 0
3 years ago
How does a ketone react with PCl5?,
Reptile [31]

When ketone is reacted with phosphorous pentachloride, chlorination takes place at the carbonyl carbon with substitution of the oxygen atom to give a geminal dichloride (with 2 Cl atoms on same carbon) according to the following equation: 

so we can say that acetone is converted into 2,2-dichloropropane by action of PCl₅

<span />

7 0
3 years ago
In cellular respiration glucose is oxidized to three compounds
7nadin3 [17]
CO2 + H2O + Energy are the comments
7 0
3 years ago
The concentration of urea in a solution prepared by dissolving 16 g of urea in 20 g of H2OH2O is ________% by mass. The molar ma
Arada [10]

Answer:

44

Explanation:

Given that :

Mass of solute = Mass of urea = 16g

Mass of water = 20g

Mass of solution = (mass of solute + mass of solvent) = (mass of urea + mass of water) = (16g + 20g) = 36g

Percentage Mass = (mass of solute / mass of solution) * 100%

Percentage Mass = (16 / 36) * 100%

Percentage Mass = 0.4444444 x 100%

Percentage Mass = 44.44%

Percentage Mass = 44%

4 0
2 years ago
Other questions:
  • Driving cars lowers the ph of the oceans by what?
    11·2 answers
  • 1. In the investigation of an unknown alcohol, there was a positive Jones test and a negative Lucas test. What deductions may be
    5·1 answer
  • Practice Explaining Heat Flow
    15·2 answers
  • Think Critically A golf ball and a bowling ball are mov-
    6·1 answer
  • Put the following in the correct chronological order from what happened first to what happened last.
    13·1 answer
  • Which surface ocean current has the warmest water.
    9·2 answers
  • When heat energy is removed, two changes are observed:
    15·2 answers
  • 1. When recommending solutions to decrease human impact, which location were you able to make the greatest positive impact? Plea
    14·1 answer
  • If you have 2.86 gallons of pure water, how many molecules of water are ionized at any given time ?
    5·1 answer
  • A solute that contains polar molecules will dissolve in a solvent that contains
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!