« previous next »

Author Question: Which of the following elements has the least number of valence electrons? A) krypton B) ... (Read 73 times)

evelyn o bentley

  • Hero Member
  • *****
  • Posts: 564
on: Aug 27, 2018
Which of the following elements has the least number of valence electrons?
 
  A) krypton
  B) potassium
  C) calcium
  D) aluminum

Question 2

How can fossil fuels be considered a form of solar energy?
 
  A) Solar energy can be used to extract them from the ground.
  B) They burn at temperatures approaching the surface of the sun.
  C) They are made from photosynthetic plants.
  D) Most fossil fuels come from desert regions of our planet.


Carissamariew

  • Sr. Member
  • ****
  • Posts: 359
Reply #1 on: Aug 27, 2018
Answer to Question 1

B

Answer to Question 2

C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.

Did you know?

People about to have surgery must tell their health care providers about all supplements they take.

Did you know?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

Did you know?

During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Isotopes may be stable or radioactive depending on the arrangement and number of neutrons in the nuc Isotopes may be stable or radioactive depending on the arrangement and number of neutrons in the nuc
Atmospheric Hazards: Assault by the Elements Atmospheric Hazards: Assault by the Elements
ELEMENTS OF ARCHITECTURE: The Roman Arch "القوس الروماني" ELEMENTS OF ARCHITECTURE: The Roman Arch "القوس الروماني"
A thimble of water contains 4.0 x 1021 molecules. The number of moles of H2O is: A thimble of water contains 4.0 x 1021 molecules. The number of moles of H2O is:
A typical lightning bolt may last for 0.167 s and transfer 1.07 x 10 electrons. Calculate the ... A typical lightning bolt may last for 0.167 s and transfer 1.07 x 10 electrons. Calculate the ...
How many electrons flow past a given cross section of the wire in 10.3 min? electrons How many electrons flow past a given cross section of the wire in 10.3 min? electrons
Video: Physiology of Asthma

For a complete list of videos, visit our video library