Chemistry291

  How many valence electrons does 1s2 2s2 2p6 3s2 3p1 have? Answer: To find out valence electrons from  1s2 2s2 2p6 3s2 3p1,we will do the following steps:                    Step-1: We need to identify valence shell by the principal quantum number (n)of highest value. From 1s2 2s2 2p6  3s2 3p1 ,the highest value of n is 3. So, third shell is the valence shell and the electrons in 3rd shell is called valence electrons.                       Step-2: Now we need to add all the valence electrons. In 3rd shell,we are getting  3s2 3p1 . If I add all the valence electrons,we get 2 + 1 = 3 valence electrons in  1s2 2s2 2p6  3s2 3p1. From  1s2 2s2 2p6  3s2 3p1, we get totally 13 electrons.Among these 13 electrons, only 3 electrons are called valence electrons that are situated in the outermost shell ( 3s2 3p1). 1s2 2s2 2p6  3s2 3p1 is the electron...

  How many valence electrons does 1s2 2s2 2p6 3s2 3p2 have? Answer: To find out valence electrons from  1s2 2s2 2p6 3s2 3p2,we will do the following steps:                    Step-1: We need to identify valence shell by the principal quantum number (n)of highest value. From 1s2 2s2 2p6  3s2 3p2 ,the highest value of n is 3. So, third shell is the valence shell and the electrons in 3rd shell is called valence electrons.                       Step-2: Now we need to add all the valence electrons. In 3rd shell,we are getting  3s2 3p2 . If I add all the valence electrons,we get 2 + 2 = 4 valence electrons in  1s2 2s2 2p6  3s2 3p2. From  1s2 2s2 2p6  3s2 3p2, we get totally 14 electrons.Among these 14 electrons, only 4 electrons are called valence electrons that are situated in the outermost shell ( 3s2 3p2). 1s2 2s2 2p6  3s2 3p2 is the electron...

  How many valence electrons does 1s2 2s2 2p6 3s2 3p4 have? Answer: To find out valence electrons from the electron configuration  1s2 2s2 2p6 3s2 3p4,we will do the following steps:                    Step-1: We need to identify valence shell by the principal quantum number (n)of highest value. From 1s2 2s2 2p6  3s2 3p4 ,the highest value of n is 3. So, third shell is the valence shell and the electrons in 3rd shell is called valence electrons.                       Step-2: Now we need to add all the valence electrons. In 3rd shell,we are getting  3s2 3p4 . If I add all the valence electrons,we get 2 + 4 = 6 valence electrons in  1s2 2s2 2p6  3s2 3p4. From  1s2 2s2 2p6  3s2 3p4, we get totally 16 electrons.Among these 16 electrons, only 6 electrons are called valence electrons that are situated in the outermost shell ( 3s2 3p4). 1s2 2s2 2p6...

How many valence electrons does 1s2 2s2 2p6 3s2 3p5 have? To find out valence electrons from  1s2 2s2 2p6 3s2 3p5,we will do the following steps:                    Step-1: We need to identify valence shell by the principal quantum number (n)of highest value. From 1s2 2s2 2p6  3s2 3p5 ,the highest value of n is 3. So, third shell is the valence shell and the electrons in 3rd shell is called valence electrons. Read:CO2 Lewis Structure                       Step-2: Now we need to add all the valence electrons. In 3rd shell,we are getting  3s2 3p5 . If I add all the valence electrons,we get 2 + 5 = 8 valence electrons in  1s2 2s2 2p6  3s2 3p5. From  1s2 2s2 2p6  3s2 3p5, we get totally 17 electrons.Among these 17 electrons, only 7 electrons are called valence electrons that are situated in the outermost shell ( 3s2 3p5). 1s2 2s2 2p6  3s2 3p5 is th...

How many valence electrons does 1s2 2s2 2p6 3s2 3p6 have? To find out valence electrons from  1s2 2s2 2p6 3s2 3p6,we will do the following steps:                    Step-1: We need to identify valence shell by the principal quantum number (n)of highest value. From 1s2 2s2 2p6 3s2 3p6 ,the highest value of n is 3. So, third shell is the valence shell and the electrons in 3rd shell is called valence electrons.                       Step-2: Now we need to add all the valence electrons. In 3rd shell,we are getting  3s2 3p6 . If I add all the valence electrons,we get 2 + 6 = 8 valence electrons in  1s2 2s2 2p6  3s2 3p6. From  1s2 2s2 2p6  3s2 3p6, we get totally 18 electrons.Among these 18 electrons, only 8 electrons are called valence electrons that are situated in the outermost shell ( 3s2 3p6). 1s2 2s2 2p6  3s2 3p6 is the electron configuration of arg...