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

Author Question: Which is smallest, an atom, a nucleus, a proton, or an electron? a. atom b. electron c. nucleus ... (Read 140 times)

clmills979

  • Hero Member
  • *****
  • Posts: 551
Which is smallest, an atom, a nucleus, a proton, or an electron?
 a. atom
 b. electron
  c. nucleus
  d. proton

Question 2

In 1983 the standard meter was redefined to what it is currently. What was the previous definition from 1960 based on?
 a. specific alloy bar housed at Sevres, France
  b. wavelength of light emitted by certain krypton atoms
  c. distance from the Earth's equator to the North Pole
  d. the distance light travels in a certain fraction of a second



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

mjbamaung

  • Sr. Member
  • ****
  • Posts: 343
Answer to Question 1

b

Answer to Question 2

b




clmills979

  • Member
  • Posts: 551
Reply 2 on: Jul 28, 2018
Wow, this really help


JaynaD87

  • Member
  • Posts: 368
Reply 3 on: Yesterday
Great answer, keep it coming :)

 

Did you know?

Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.

Did you know?

Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

Did you know?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

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?

The horizontal fraction bar was introduced by the Arabs.

For a complete list of videos, visit our video library