This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Rubidium87 decays by beta decay with a half-life of 4.9 1010 yr. How many 87Rb atoms are in a moon ... (Read 49 times)

Caileynorton

  • Full Member
  • ***
  • Posts: 132
on: Nov 5, 2023

Question 1

Radium-226 decays by alpha emission.  What is its decay product?
◦ Fr
◦ Rn
◦ Th
◦ Ac
◦ Po

Question 2

Rubidium–87 decays by beta decay with a half-life of 4.9 × 1010 yr.  How many 87Rb atoms are in a moon rock sample that has a rubidium decay rate of 3,500 disintegrations per hour?
◦ 9.0 × 1016 atoms
◦ 4.3 × 10–4 atoms
◦ 2.2 × 1018 atoms
◦ 2.5 × 1014 atoms
◦ 1.7 × 1014 atoms
Chemistry ¦ Chang, Goldsby ¦ 11th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by Caileynorton on Nov 5, 2023

bleep bloop

  • Full Member
  • ***
  • Posts: 173
Reply #1 on: Nov 5, 2023
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 49% of students answer this correctly


Caileynorton

  • Member
  • Posts: 132
Reply 2 on: Nov 5, 2023
Gracias!

cam1229

  • Member
  • Posts: 329
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

Did you know?

A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

Did you know?

Although not all of the following muscle groups are commonly used, intramuscular injections may be given into the abdominals, biceps, calves, deltoids, gluteals, laterals, pectorals, quadriceps, trapezoids, and triceps.

Did you know?

Human kidneys will clean about 1 million gallons of blood in an average lifetime.

Did you know?

Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.

The three domains of life The three domains of life
Sporic life cycles Sporic life cycles
DNA replication is the basis for the perpetuation of life through time DNA replication is the basis for the perpetuation of life through time
To cleanse an open wound, begin close to the wound and work outward in full or half circles. To cleanse an open wound, begin close to the wound and work outward in full or half circles.
Life Expectancy in Global Perspective Life Expectancy in Global Perspective
Oxidative stress can begin in childhood and lead to progressive damage throughout life Oxidative stress can begin in childhood and lead to progressive damage throughout life
Video: Medullary osmotic gradient: countercurrent multiplier, urea recycling & vasa recta countercurrent exchange

For a complete list of videos, visit our video library