« previous next »

Author Question: The halogens, alkali metals, and alkaline earth metals have ________ valence electrons, ... (Read 73 times)

s.tung

  • Hero Member
  • *****
  • Posts: 577
on: Aug 27, 2018
The halogens, alkali metals, and alkaline earth metals have ________ valence electrons, respectively.
 
  A) 7, 4, and 6
  B) 1, 5, and 7
  C) 8, 2, and 3
  D) 7, 1, and 2
  E) 2, 7, and 4

Question 2

Of the noble gases, ________ is present in highest concentration in dry air at sea level.
 
  A) Ne
  B) He
  C) Xe
  D) Kr
  E) Ar
Chemistry: The Central Science ¦ Brown, LeMay, Bursten ¦ 14th Edition
Buy Test-Bank


bdobbins

  • Sr. Member
  • ****
  • Posts: 326
Reply #1 on: Aug 27, 2018
Answer to Question 1

D

Answer to Question 2

E


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Did you know?

Patients should never assume they are being given the appropriate drugs. They should make sure they know which drugs are being prescribed, and always double-check that the drugs received match the prescription.

Did you know?

The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

Did you know?

On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.

Did you know?

The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

False-color imagery of the Sun, a G-type main-sequence star, the closest to Earth. False-color imagery of the Sun, a G-type main-sequence star, the closest to Earth.
The Interiors of Earth and Mercury The Interiors of Earth and Mercury
Earth’s history is divided into nested sets of time--eons, eras, periods, and epochs--and is called Earth’s history is divided into nested sets of time--eons, eras, periods, and epochs--and is called
Heaven or earth? Heaven or earth?
Earth Science is Environmental Science Earth Science is Environmental Science
The Last Man on Earth The Last Man on Earth
Video: Fractures Animation

For a complete list of videos, visit our video library