This topic contains a solution. Click here to go to the answer

Author Question: An yttrium isotope has 39 protons and 50 neutrons in its nucleus. Which one of the following symbols ... (Read 226 times)

jjjetplane

  • Hero Member
  • *****
  • Posts: 556

Question 1

How many electrons can be found with principal quantum number in a suitably heavy atom?
◦ 20
◦ 6
◦ 18
◦ 9

Question 2

An yttrium isotope has 39 protons and 50 neutrons in its nucleus. Which one of the following symbols accurately represents this isotope?
Y
Y
Y
Y
Y


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by jjjetplane on Oct 11, 2019

rosiehomeworddo

  • Sr. Member
  • ****
  • Posts: 306
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 25% of students answer this correctly




jjjetplane

  • Member
  • Posts: 556
Reply 2 on: Oct 11, 2019
Gracias!


vickyvicksss

  • Member
  • Posts: 351
Reply 3 on: Yesterday
Excellent

 

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Did you know?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

Did you know?

In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

Did you know?

More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

For a complete list of videos, visit our video library