An echocardiogram uses sound waves to produce images of your heart. This commonly used test allows your doctor to see your heart beating and pumping blood. Your doctor can use the images from an echocardiogram to identify heart disease.Depending on what information your doctor needs, you may have one of several types of echocardiograms.his commonly used test allows your doctor to see your heart beating and pumping blood. Your doctor can use the images from an echocardiogram to identify heart disease. Depending on what information your doctor needs, you may have one of several types of echocardiograms.
Explain the octet rule and give an example of how it is used. The electron configurations of the noble gases are extremely stable. The octet rule states that, in chemical reactions, elements gain or lose electrons to achieve a noble gas configuration.hen oxygen reacts to form ionic compounds, it completes its octet by gaining two electrons from the element it reacts with. These two electrons add to the p orbital of oxygen, giving it the electron configuration (1s 2s 2p) of neon.
2. One can use the method insert, append and extend to add elements to a List. The insert method expects an index and the value to be inserted. Here is an example of insert : So we see the value âyesâ was inserted at the index 0 in the list and all the other elements were shifted accordingly.The append method can take one or more elements as input and appends them into the list.. Python allows to use mathematical operators like +, * etc to be used with lists. Here are some examples : So we see that through + operator elements could be added to the list and through * operator we can add the complete list repeatedly towards the end.