Question

using the periodic table to identify the elements with the following electrons configuration [Ne]3s^1 [Kr] 5s^2...

using the periodic table to identify the elements with the following electrons configuration

[Ne]3s^1
[Kr] 5s^2 4d^10
[Xe] 5s^2
[Kr] 5s^2 4d^10 5p^3

spell out the full name of the element
0 0
Add a comment Improve this question Transcribed image text
Answer #1

[Ne]3s^1 has total 11electrons and belongs to s block and IA groupand 3rd period. It is Na[SODIUM]

[Kr] 5s^2 4d^10This element belongs to 5th period and d-block , as it has 12 valence electrons it belongs to IIB group.

Thus the element is Cd[CADMIUM]

[Xe] 5s^2 This is wrong.

It should be [Xe] 6s2

Then it is Ba[BARIUM] as it belongs to s-block , 6th period with 2 valence electrons( IIA).

[Kr] 5s^2 4d^10 5p^3

this has total 15 valenc electrons , so belongs to 15 group or VA group and 5th period, belongs to p-block.

It is Sb[ANTIMONY]

Add a comment
Know the answer?
Add Answer to:
using the periodic table to identify the elements with the following electrons configuration [Ne]3s^1 [Kr] 5s^2...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT