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

Author Question: Main group elements are those in groups ________. (Read 70 times)

shofmannx20

  • Hero Member
  • *****
  • Posts: 562
on: Jul 8, 2021

Question 1

Magnesium has 3 stable isotopes with masses of 23.98504, 24.98584, and 25.98259 respectively. Mg-25 is 10.13%. What are the percentages of the other two isotopes?
◦ 78.8% and 10.9%
◦ 50% and 50%
◦ 44.9% and 44.9%
◦ 83.6% and 16.4%
◦ 78.9% and 21.1%

Question 2

Main group elements are those in groups ________.
◦ 1 and 2
◦ 1, 2, and 13 to 18
◦ 13 to 18
◦ 1 and 18
◦ 3 to 12
General Chemistry: Principles and Modern Applications ¦ Petrucci, Herring, Madura, Bissonnette ¦ 11th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by shofmannx20 on Jul 8, 2021

hollysheppard095

  • Sr. Member
  • ****
  • Posts: 339
Reply #1 on: Jul 8, 2021
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 64% of students answer this correctly


shofmannx20

  • Member
  • Posts: 562
Reply 2 on: Jul 8, 2021
Great answer, keep it coming :)

dantucker

  • Member
  • Posts: 346
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.

Did you know?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

Did you know?

The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

Did you know?

Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

Did you know?

Blastomycosis is often misdiagnosed, resulting in tragic outcomes. It is caused by a fungus living in moist soil, in wooded areas of the United States and Canada. If inhaled, the fungus can cause mild breathing problems that may worsen and cause serious illness and even death.

Breakdown of pyruvate and the attachment of an acetyl group to CoA Breakdown of pyruvate and the attachment of an acetyl group to CoA
Formed Elements of Blood Formed Elements of Blood
Successful male musical groups may owe some of their popularity among preteen girls to adrenarche. Successful male musical groups may owe some of their popularity among preteen girls to adrenarche.
The Periodic Table of Elements. The Periodic Table of Elements.
A taproot system consists of a large main root together with its lateral branchings A taproot system consists of a large main root together with its lateral branchings
Mutations in cis-regulatory elements of Ultrabithorax cause homeotic transformations Mutations in cis-regulatory elements of Ultrabithorax cause homeotic transformations
Video: Factors that increase metabolic rate and heat production

For a complete list of videos, visit our video library