Ask your own question, for FREE!
Physics 7 Online
OpenStudy (ragingsquirrel):

Aluminum (Al) has an atomic number of 13 and an atomic mass of 27. Which of the following correctly shows the electron arrangement for aluminum? 2, 11 2, 8, 1 2, 8, 3 2, 8, 17

OpenStudy (anonymous):

what youre basically interested in here is the electron arrangement... the answer is 2,8,3... because the first energy level can only hold 2 electrons...the second level can hold 8 and the third can hold 8 ( though it can expand to hold 18...but thats not important now)... anyways...the first holds 2...which leaves you with 11...the second holds 8 which then leaves you with 3.... hence the arrangement 2,8,3

OpenStudy (preetha):

RagingSq, you had better review electronic config. You should be able to write the electronic configs of the first 10 elements cold.

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Latest Questions
abby2blessed: How do you guys feel about second chances? Concerning relationships, both romantic and otherwise.
3 days ago 0 Replies 0 Medals
TJH: love Love, it comes, it goes But what if it stayed stayed in the silence the storm stayed when the world was loud for me it's different; it left when it was
4 days ago 4 Replies 3 Medals
Puffer: General question what came first the chicken or the egg itu2019s a trick question
3 days ago 5 Replies 1 Medal
Twaylor: would anyone mind helping me fix this in my code
6 days ago 9 Replies 0 Medals
TJH: Thank you to staff and admin for keeping this place running
6 days ago 7 Replies 1 Medal
Bounty: the world keeps moving fast and I'm stuck in a time lapse all I need is a minute
1 week ago 4 Replies 0 Medals
Bounty: can I get so tips on how to start my journey into semi-realism art also on how to
2 weeks ago 0 Replies 0 Medals
Strawberryluna: Read my poem. Im not for criticism its a poem I wrote after my breakup: Youu2019ll never understand the way you made me break, I hate that I still love you
4 days ago 5 Replies 2 Medals
Bounty: first poem in a min- (tittle)? one moment i'm fine I smile till my face burns I laugh till I cant breath Then I cry I wonder where I went wrong I listen to
2 weeks ago 5 Replies 1 Medal
Twaylor: 3d printing a glider (for 150 pound 5'8 person - prolly should make it for up to
3 weeks ago 5 Replies 0 Medals
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!