1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Cerrena [4.2K]
3 years ago
15

What are valence electrons?

Biology
2 answers:
Ksivusya [100]3 years ago
6 0

Answer:

D

Explanation:

The simple answer is the electrons in the outermost energy level.

Hydrogen has 1 electron in the outermost energy level.

Magnesium has 2 so this tells you that magnesium has a charge of 2

Oxygen has 6  oxygen has a charge of - 2

Fluorine has 7

For most elements, the electrons in the most outer ring determine the valence of the element.

Notice that the non metals work differently than the metals. Mg may have a charge of 2 and that is the number of electrons in the valence right.

Oxygen is a non metal it has a charge of - 2. It gets 6 electrons by subtracting the number of its charge from 8.

Scrat [10]3 years ago
5 0

Answer:

D. electrons in the outermost energy level

Explanation:

The valence electrons are the electrons in the outermost energy level.

You might be interested in
The ocean is maintaining a constant salinity because:
11Alexandr11 [23.1K]
In mid-ocean ridge areas, ocean water is cycled through the crust because of the high heat flow in the area. Water in the rock is heated over the magmas, rising up and drawing in cold water from the sides. This process is occurring all over the world, and is the primary means for maintaining ocean salinity in a relatively constant range over the long term, as elements in the sea water when it is heated react with the rocks. There is so much water flow, cumulatively over the entire world, that this process basically buffers ocean chemistry.

Obviously large increases or decreases in salinity can and do occur in isolated basins that do not have free exchange with the open oceans.
8 0
4 years ago
All of the alkali earth metals, Group 2, have two valence electrons. Which of these would represent the oxidation number of the
stiv31 [10]
Plus 2 should be your answer
6 0
3 years ago
People with diabetes must monitor their blood glucose levels. Most do this by checking it themselves, ofter several times per da
mojhsa [17]

The answer to your question is,

C) Orange Juice. They need some sort of sweet item.

-Mabel <3

5 0
4 years ago
1. Why are new biomedical products created and what factors influence them to evolve over
Zanzabum

Answer:

Rapid progress in biomedical science has also encouraged the development of multiple successful medical technologies, but their translation into clinical use has posed complex scientific, cultural, and social problems. As demonstrated by the development of new acquired immune deficiency syndrome (AIDS) medications, the rise of these problems is spurring new interest in medical innovation.

Biomedical products are created for better results in medical technology including autoclave / sterilizer, anesthesia machine, aspiration/suction pump, and blood chemistry analyzer etcetra.

Factors influencing them includes harmful effect on other body parts ( beta blockers have harmful effect on heart), outdating technology, and introduction of evolved diseases that is not abl to cure with old products.

3 0
3 years ago
3.<br> What are finger flutings?
telo118 [61]

Answer: In prehistoric art, finger flutings are lines that fingers leave on a soft surface. Considered a form of cave painting, they occur in caves throughout southern Australia, New Guinea, and southwestern Europe, and were presumably made over a considerable time span including some or all of the Upper Paleolithic.

Explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • First set of teeth in humans
    15·1 answer
  • What purpose does a fish ladder serve?
    6·2 answers
  • If the nucleotide sequence of one strand of a dna helix is gcctaa, what would be the sequence on the complementary strand?
    12·1 answer
  • 1. Laura uses a cotton swab to collect microorganisms from a hand rail and streaks a plate. On the fourth day of incubation, she
    14·1 answer
  • 13C and 14C are isotopes of 12C, which has 6 electrons, 6 protons, and 6 neutrons. What is the arrangement of subatomic particle
    7·2 answers
  • Would a desalination plant be beneficial to your local area? Explain why or why not.
    15·1 answer
  • Refer to the diagram to answer this question.
    6·1 answer
  • Shortly after adopting his cat, Sassy, Thomas realizes that his poor cat isn’t eating very much. After ruling out any illnesses,
    9·1 answer
  • Q1: What form of energy is this new animal sensitive to?*
    9·1 answer
  • What material is the objective lens made of in UV fluorescence microscopy
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!