What would you like to say?
  2. Please enter a title
  4. Please enter a message
  5. Your discussion will live here... (Start typing, we will pick a forum for you)
    Please select a forum
    Change forum
    View more forums...
    View less forums...
    GCSEs
    A-levels
    Applications, Clearing and UCAS
    University Life
    Student Finance England
    Part-time and temporary employment
    Chat
    Everyday issues
    Friends, family and work
    Relationships
    Health
    News
    Student Surveys and Research

Chemistry help: Magnesium 2+ ion Electron config

Watch this thread
science_geeks
Badges: 15
Rep:
? You'll earn badges for being active around the site. Rep gems come when your posts are rated by other community members.
#1
Report Thread starter 1 year ago
#1
Hi everyone,

Please can someone help me understand why the electronic config of Mg2^+ is 1s2 2s2 2p6 3s2?
cancel
I did a question (see pic) where I selected option B, because I thought that the 2+ ion means 10 electrons which matched option B's electron config but the right answer is C.. please can someone help explain.

Thanks in advance! Name: Screenshot 2020-06-13 at 14.56.44.png Views: 13 Size: 41.9 KB
0
reply
Pigster
Badges: 20
Rep:
? You'll earn badges for being active around the site. Rep gems come when your posts are rated by other community members.
#2
Report 1 year ago
#2
(Original post by science_geeks)
Hi everyone,

Please can someone help me understand why the electronic config of Mg2^+ is 1s2 2s2 2p6 3s2?
cancel
I did a question (see pic) where I selected option B, because I thought that the 2+ ion means 10 electrons which matched option B's electron config but the right answer is C.. please can someone help explain.

Thanks in advance! Name: Screenshot 2020-06-13 at 14.56.44.png Views: 13 Size: 41.9 KB
The answer IS B.

Anyone who says otherwise has made a mistake.
1
reply
science_geeks
Badges: 15
Rep:
? You'll earn badges for being active around the site. Rep gems come when your posts are rated by other community members.
#3
Report Thread starter 1 year ago
#3
(Original post by Pigster)
The answer IS B.

Anyone who says otherwise has made a mistake.
Thank you! I thought as much
0
reply
X

Quick Reply

Attached files
Write a reply...
Reply
new posts
Back
to top
Latest
Trending
My Feed

Oops, nobody has posted
in the last few hours.

Why not re-start the conversation?

Start new discussion

see more

Oops, nobody is replying to posts.

Why not reply to an un-answered thread?

View un-answered posts

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise

Can't find any interesting discussions?

Update your preferences

Have you seen...?

Poll

Join the discussion

Has advance information helped during your exams?

view results vote now
Yes (24)
68.57%
No (7)
20%
I didn't use it to prepare (4)
11.43%
total votes: 35

Watched Threads

View All
Latest
Trending
My Feed

Oops, nobody has posted
in the last few hours.

Why not re-start the conversation?

Start new discussion

Oops, nobody is replying to posts.

Why not reply to an un-answered thread?

View un-answered posts

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise

Can't find any interesting discussions?

Update your preferences

Related
Reply
Latest