« previous next »

Author Question: Lithium, beryllium, and boron are elements with atomic number 3, 4, and 5, respectively. Even though ... (Read 91 times)

jho37

  • Hero Member
  • *****
  • Posts: 531
on: Jul 27, 2018
Lithium, beryllium, and boron are elements with atomic number 3, 4, and 5, respectively. Even though they are three of the five simplest elements, why are they rare compared to many heavier elements?
 
  What will be an ideal response?

Question 2

Do you think it is possible that a 1.5-solar-mass red giant could harbor an advanced civilization? Explain your reasoning.
 
  What will be an ideal response?


kswal303

  • Sr. Member
  • ****
  • Posts: 316
Reply #1 on: Jul 27, 2018
Answer to Question 1

Helium fuses into carbon by combining three helium nuclei (atomic number

Answer to Question 2

A 1.5-solar-mass red giant is a temporary stage of life for a low-mass star. If an advanced civilization had already developed around this star, which is possible, then it may have had the resources to respond to its expanding, cooling, and brightening star.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Did you know?

Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

Did you know?

The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

Did you know?

There are over 65,000 known species of protozoa. About 10,000 species are parasitic.

Hiroshima lies in ruins after it was destroyed by an atomic bomb. Hiroshima lies in ruins after it was destroyed by an atomic bomb.
Correlations on tests for a number of cognitive abilities are higher for monozygotic twin pairs (who ... Correlations on tests for a number of cognitive abilities are higher for monozygotic twin pairs (who ...
The Periodic Table of Elements. The Periodic Table of Elements.
Calculate the number of sodium ions in 0.375moles of Na2CO3.10H20 Calculate the number of sodium ions in 0.375moles of Na2CO3.10H20
What atomic or hybrid orbital on P make up the sigma bond between P and Cl in phosphorous ... What atomic or hybrid orbital on P make up the sigma bond between P and Cl in phosphorous ...
What is the total number of valence electrons in a silicate ion, SiO32-? What is the total number of valence electrons in a silicate ion, SiO32-?
Video: Immune responses Animation

For a complete list of videos, visit our video library