10.for the following questions, use a periodic table and your atomic calculations to find the unknown information about each isotope: you have an neutrally charged isotope with a mass number of 99 and an atomic number of 43. how many neutrons? 43 99 56 142

u can delete ur account.

1. go on google and write

2 open this and click on your profile pic and if your profile is not appearing, then u have to log in.

3. when u click on your profile pic, there appears four options on the top.

4. click on the 1st option and scroll down and go at the bottom.

5. click on edit profile.

6. there appears a option 'prefernces' and at that option at the right side , 'edit' is written.

7. click on the edit option.

8. there is a option " i want to delete my account" and click on that.

hope this u

and ur welcm

: )

i believe the answer would be:

d. violin, clarinet, french horn, and tuba