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
Nezavi [6.7K]
3 years ago
6

When used in a shorthand electron configuration, the noble gas core [He] represents 1s^2 2s^2 2p^6.

Chemistry
2 answers:
Ugo [173]3 years ago
8 0
True; electron configuration for He is 1s^2, 2s^2, 2p^6
alex41 [277]3 years ago
7 0
I think this is false.  If I remember correctly the noble gas core [He] represents 1s².  For example using the short hand notation for Boron you would do
[He] 2s²2p¹.

Hope this helps.  Let me know if you have any further questions or need any clarification.
You might be interested in
3) During the day at 27°C a cylinder with a sliding top contains 20.0 liters
tatiyna

Answer:

T_2=12\°C

Explanation:  

Hello there!  

In this case, according to the Charles' law equation which help us to understand the directly proportional relationship between volume and temperature:

\frac{T_2}{V_2}=\frac{T_1}{V_1}  

Thus, by solving for the final temperature, T2, and making sure we use the temperatures in Kelvin, we can calculate the final temperature as shown below:

T_2=\frac{T_1V_2}{V_1}  \\\\T_2=\frac{(27+273)K*19L}{20.0L}\\\\T_2=285-273\\\\T_2=12\°C

Best regards!  

Best regards!

4 0
2 years ago
For the reaction: Cr2O7^2- + NH4^+ → Cr2O3 + N2, which is the oxidizing agent?
lord [1]

Answer:

(NH4)2Cr2O7

Explanation:

Hope this somehow helped.

3 0
3 years ago
A fixed mass of oxygen gas occupies 300cm cube at 0 degree centigrade. what volume would the gas occupy at 15 degree centigrade​
egoroff_w [7]

Answer:

Volume occupied by oxygen gas at 15 degree centigrade​ is equal to 316.5 centimeter cube

Explanation:

Assuming Pressure is constant.

\frac{V_1}{T_1} = \frac{V_2}{T_2}

where T1 and T2 are temperature in Kelvin

Substituting the give values we get-

\frac{300}{273} = \frac{V_2}{288}

V_2 = \frac{288*300}{273} \\V_2 = 316.5

Volume occupied by oxygen gas at 15 degree centigrade​ is equal to 316.5 centimeter cube

5 0
2 years ago
Explain some of the uses of metals based on their properties.
Effectus [21]

Answer:

Explain some of the uses of metals based on their properties.

Explanation:

Metals have a shiny or metallic luster and are good conductors of heat and electricity, they can be bent and pounded in various shapes, so they can be used on cars, coins, some pipes, keys, and and a flag.

3 0
2 years ago
What happens to the H20 in a combustion reaction?
allochka39001 [22]

A combustion reaction is when a substance reacts with oxygen and releases a huge amount of energy in the form of light and heat. A combustion reaction always has oxygen as one reactant. ... A combustion reaction also always produces CO2 and H2O.

So water (H2O) is created

Source: https://study.com/academy/lesson/writing-and-balancing-combustion-reactions.html

6 0
3 years ago
Other questions:
  • List the four groups attached to the central carbon of an amino acid.
    9·2 answers
  • What is the percent composition of potassium in KNO3
    5·2 answers
  • All of the following conditions of STP are true except A. 101.3 kPa B. 273.15 K C. 22.4 L D. 3.81 kPa
    10·1 answer
  • How do you describe an organ
    11·2 answers
  • Given the following reaction:
    10·1 answer
  • Give an example of change that includes more than one change​
    12·1 answer
  • A chemist prepares a solution of barium acetate BaCH3CO22 by weighing out 52.9g of barium acetate into a 100.mL volumetric flask
    15·1 answer
  • When the offspring has a new genetic variation that a government neither of us parents it is called
    6·1 answer
  • Write a well-constructed paragraph on how ionic bonds
    10·1 answer
  • How do I draw energy level diagrams?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!