Learn how to determine the number of valence electrons for an element using the periodic table.
Log in Steve 4 months agoPosted 4 months ago. Direct link to Steve's post “Why doesn't helium have 8...” Why doesn't helium have 8 electrons instead of 2? • (5 votes) vincent.wang11 4 months agoPosted 4 months ago. Direct link to vincent.wang11's post “Since helium is the secon...” Since helium is the second element in the table, a neutral helium atom can't have 8 electrons as it only has two. The other elements have an atomic number greater than 8. (12 votes) Susan Everly a month agoPosted a month ago. Direct link to Susan Everly's post “so how many valence elect...” so how many valence electrons does group 3-12 have? or do they have none at all? • (3 votes) Zayan a month agoPosted a month ago. Direct link to Zayan's post “It varies. Also, they hav...” It varies. Also, they have a weird habit of being able to have more than one oxidation state. Iron (26) is in the 8th group and usually has a charge of +2 or +3. (5 votes) lydia.ashenafi.277 4 months agoPosted 4 months ago. Direct link to lydia.ashenafi.277's post “At 12:29, what about the ...” At • (5 votes) kristine.aboloje 5 months agoPosted 5 months ago. Direct link to kristine.aboloje's post “How many electrons can fi...” How many electrons can fill each shell? • (3 votes) Anushka 2 months agoPosted 2 months ago. Direct link to Anushka's post “first shell is 2, second ...” first shell is 2, second shell is 8, third shell is 18, and then 32. (4 votes) alexa araujo 3 months agoPosted 3 months ago. Direct link to alexa araujo's post “How many electrons can fi...” How many electrons can fill each shell? • (3 votes) Pierce, Greyson 3 months agoPosted 3 months ago. Direct link to Pierce, Greyson's post “2, 8, 18, 32, 32, 18, 2. ...” 2, 8, 18, 32, 32, 18, 2. IT follows the rule of 2n^2, where n is equal to the position of the shell. (2 votes) Squirrel 3 months agoPosted 3 months ago. Direct link to Squirrel's post “What about the elements a...” What about the elements at the bottom who can't really fit in so they left it out? How much valence electrons do they have? • (2 votes) Zayan a month agoPosted a month ago. Direct link to Zayan's post “They have three to four v...” They have three to four valence electrons, according to my research. (3 votes) Limbo 9 days agoPosted 9 days ago. Direct link to Limbo's post “Why is Helium so special ...” Why is Helium so special and why doesn't this apply to transition metals? • (3 votes) Moonwatcher 24 days agoPosted 24 days ago. Direct link to Moonwatcher's post “This is the "1A,2A,3A..."...” This is the "1A,2A,3A..." scale right? • (2 votes) aadritsharma8 7 days agoPosted 7 days ago. Direct link to aadritsharma8's post “What about the transition...” What about the transition metals • (2 votes) 3vd9 7 days agoPosted 7 days ago. Direct link to 3vd9's post “"The number of valence el...” "The number of valence electrons for transition metals does NOT follow the same pattern as main group elements. This is due to how electrons fill in subshells of each shell. (1 vote) CodeNinja12 5 days agoPosted 5 days ago. Direct link to CodeNinja12's post “What about lanthanides an...” What about lanthanides and actinides? • (1 vote) Zayan 4 days agoPosted 4 days ago. Direct link to Zayan's post “The lanthanides and actin...” The lanthanides and actinides have three or four valence electrons, according to my research. (1 vote)Want to join the conversation?
12:29
If you're interested in learning more about this, explore electron configurations in AP Chemistry."
