What type of star has an absolute brightness of 5 and a surface temperature around 3,000 °C?
2 answers:
Answer : The correct answer is option A : Supergiants
Explanation :
In the above graph absolute brightness is marked on y-axis and surface temperature is marked on x-axis.
To find out what type of star has an absolute brightness of 5 and a surface temperature around 3,000 °C, we will draw a straight line from x axis which represents a temperature of 3,000 °C and another straight line from y-axis which represents absolute brightness of 5.
From the attached graph we can see that these 2 lines meet in the region shown by Supergiants
Therefore we can say that, Supergiants has an absolute brightness of 5 and a surface temperature around 3,000 °C
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A molecular orbital that decreases the electron density between two nuclei is said to be <u>antibonding.</u>
The bonding orbital, which would be more stable and encourages the bonding of the two H atoms into , is the orbital that is located in a less energetic state than just the electron shells of the separate atoms. The antibonding orbital, which has higher energy but is less stable, resists bonding when it is occupied.
An asterisk (sigma*) is placed next to the corresponding kind of molecular orbital to indicate an antibonding orbital. The antibonding orbital known as * would be connected to sigma orbitals, as well as antibonding pi orbitals are known as * orbitals.
Therefore, molecular orbital that decreases the electron density between two nuclei is said to be <u>antibonding.</u>
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Hence, the correct answer will be option (b)
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