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
lutik1710 [3]
3 years ago
11

The numbers listed represent the number of electrons in the first, second, and third energy levels, respectively. On this basis,

which of the following is an unstable or reactive atom? A) 2, 8, 8B) 2, 8C) 2D) 2, 8, 1
Biology
1 answer:
yulyashka [42]3 years ago
6 0

Answer:

D

Explanation:

This is because one of its orbital shells is not filled – the one with 1 electron. This atom will, therefore, want to lose this electron – it takes less energy to do this than gain 7 electrons -- to achieve stable electron configuration. This makes this atom very reactive in a chemical reaction.  Usually orbital shells of atoms begin with an S orbital shell that is filled with 2 electrons then P (x,y,z) orbital shells filled with 6 electrons total. There are also higher energy f and d orbitals that each take a maximum 10 and 14 electrons respectively. An atom is stable if its orbitals are fully filled.  

You might be interested in
Which of the following molecules is synthesized at specific times during the cell cycle and
arsen [322]

Answer:

D. Cyclin

Explanation:

Cyclins drive the events of the cell cycle by partnering with a family of enzymes called the cyclin-dependent kinases (Cdks). A lone Cdk is inactive, but the binding of a cyclin activates it, making it a functional enzyme and allowing it to modify target proteins.

5 0
3 years ago
Which statement describes a situation that leads to stability within an ecosystem?
s344n2d4d5 [400]

Answer:

Interactions between biotic and abiotic components regulate carbon dioxide and water levels.

Explanation:

Abiotic factors include temperature, water, humidity, etc; while biotic factors include all the forms of life. These factors interact in the ecosystem to maintain its homeostasis. For example, during the photosynthesis, plants use the energy of the sun water and carbon dioxide to produce food (carbohydrates) and this process converts carbon dioxide (CO2) to oxygen, which is critical for maintaining the homeostasis of the ecosystem.

3 0
3 years ago
Which characteristic sof life best describes the process of photosynthesis?
Maslowich
Which characteristic of life best describes photosynthesis?
Answer: The correct answer will be metabolism. Explanation: Photosynthesis is a process performed by the plants and green bacteria which produces sucrose using carbon dioxide and water in the presence of sunlight.
8 0
3 years ago
I actually need so much help with this, I’ll give extra points just PLEASE HELP
suter [353]
#2 is an exponential graph, #3 is linear horizontal, #4 is like graph 1, #5 is linear upwards but slowly, #6 like number 5, #7 like number 1, #8 like number 1
6 0
3 years ago
Plant Kingdom to spcises
arsen [322]
They have every thing you need on http://www.factmonster.com/ipka/A0932480.html 
8 0
3 years ago
Other questions:
  • A numerical description of the outcome of an experiment is called a
    13·1 answer
  • What fraction of the offspring would be expected to have white hair?
    8·1 answer
  • Describe the different abiotic and biotic parts of an ecosystem. Identify and explain what organisms lie on each of the trophic
    6·1 answer
  • What do we call an organized profile of a person's chromosomes?
    15·1 answer
  • Fungi of the phylum Basidiomycota form mycorrhizal associations with orchids, a type of flowering plant. How do these associatio
    14·2 answers
  • 11. A red and a white snapdragon are crossed, and their offspring is pink. This is an example of
    7·1 answer
  • Describe a DNA molecule and its shape
    7·2 answers
  • Which event is an example of vaporization?
    11·2 answers
  • Plz help more bio multiple choice!
    11·1 answer
  • How would a tree falling from the top most layer most immediately affect the surrounding plants in the other lower layers?.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!