« previous next »

Author Question: An isotope of oxygen has 8 protons, 10 neutrons, and 8 electrons. What is the atomic mass of this ... (Read 167 times)

asan beg

  • Hero Member
  • *****
  • Posts: 570
on: Jul 16, 2018
An isotope of oxygen has 8 protons, 10 neutrons, and 8 electrons. What is the atomic mass of this isotope?
 
  A) 16
  B) 18
  C) 21
  D) 26

Question 2

________ are groups of the same kinds of atoms that cannot be broken down into other substances by ordinary chemical means.
 
  A) Molecules
  B) Electrons
  C) Elements
  D) Minerals


dpost18

  • Sr. Member
  • ****
  • Posts: 345
Reply #1 on: Jul 16, 2018
Answer to Question 1

Answer: B

Answer to Question 2

Answer: C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

Did you know?

After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

Did you know?

The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

Did you know?

Asthma cases in Americans are about 75% higher today than they were in 1980.

The Calvin Cycle Was Determined by Isotope Labelling Methods The Calvin Cycle Was Determined by Isotope Labelling Methods
This five-wire mass air flow sensor consists of a metal foil sensing unit, an intake air temperature ... This five-wire mass air flow sensor consists of a metal foil sensing unit, an intake air temperature ...
When the exhaust is rich, the output of a zirconia oxygen sensor is above 450 mV. When the exhaust is rich, the output of a zirconia oxygen sensor is above 450 mV.
Pressure is a result of the atmosphere’s mass. Pressure is a result of the atmosphere’s mass.
Air-mass thunderstorms—mT air masses Air-mass thunderstorms—mT air masses
Atomic Bonding Atomic Bonding
Video: Spermatogenesis Animation

For a complete list of videos, visit our video library