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

Author Question: Atoms are held together by A) the electrostatic force of attraction between the protons in the ... (Read 80 times)

eruditmonkey@yahoo.com

  • Hero Member
  • *****
  • Posts: 546
Atoms are held together by
 
  A) the electrostatic force of attraction between the protons in the nucleus and the surrounding electrons
  B) the combined electrostatic force of attraction between the protons and neutrons in the nucleus and the surrounding electrons
  C) the force of gravitational attraction between the protons in the nucleus and the surrounding electrons
  D) the electrostatic force of attraction between the neutrons in the nucleus and the surrounding electrons

Question 2

Carbon isotope evidence from rocks found on an island off the coast of Greenland, although controversial, suggests that life may have
 
  A) existed and was well established by3.4 to 3.5 billion years ago
  B) originated about 3.4 billion years ago
  C) existed 3.85 billion years ago
  D) originated when the Earth formed 4.6 billion years ago



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

akemokai

  • Sr. Member
  • ****
  • Posts: 347
Answer to Question 1

A

Answer to Question 2

C




eruditmonkey@yahoo.com

  • Member
  • Posts: 546
Reply 2 on: Jul 27, 2018
Excellent


gcook

  • Member
  • Posts: 343
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

Did you know?

The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.

Did you know?

Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

Did you know?

The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

Did you know?

There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

Did you know?

Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.

For a complete list of videos, visit our video library