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
pashok25 [27]
3 years ago
14

The electronic configuration of an element is given below.

Chemistry
1 answer:
drek231 [11]3 years ago
4 0

Answer:

C. It is reactive because it must gain two electrons to have a full outermost energy level.  

Step-by-step explanation:

The electron configuration of this element ends in 2s²2p⁴.

A filled energy level would end in 2s²2p⁶.

The element will be reactive, because it must gain electrons to have a full energy level, and it needs two more electrons to do this.

You might be interested in
A person's heart beats 72 times a minute. At this rate, how many times does it beat in one hour?
sesenic [268]

At one minute, a persons's heart beats 72 times.

Therefore, in one hour or 60 minutes, a person's heart will beat (60×72) times, i.e., 4320 times

Answer is 4320 times

6 0
3 years ago
Debbie was doing a science lab, and she was instructed to decide whether a piece of plastic would float or sink without actually
Mandarinka [93]
Find the density of the plastic. if the density is less than that of water, it's going to float. If it's more than the density of water, then it's going to sink.
8 0
3 years ago
Read 2 more answers
A geologist finds a section of rock that shows was ripple marks. What does it he pr send me or a ripple marks say about the area
n200080 [17]
A beacuse the rock starts to tear away from the water which will then create ripple marks
3 0
3 years ago
An aqueous solution contains 0.23 M potassium hypochlorite.
Arturiano [62]

Answer:

0.22 mol HClO, 0.11mol HBr.

0.25mol NH₄Cl, 0.12 mol HCl

Explanation:

A buffer is defined as a mixture in solution between weak acid and its conjugate base or vice versa.

Potassium hypochlorite (KClO) could be seen as conjugate base of HClO (Weak acid). That means the addition of <em>0.22 mol HClO  </em>will convert the solution in a buffer. HBr reacts with KClO producing HClO, thus, <em>0.11mol HBr</em> will, also, convert the solution in a buffer. 0.23 mol HBr will react completely with KClO and in the solution you will have only HClO, no a buffering system.

Ammonia (NH₃) is a weak base and its conjugate base is NH₄⁺. That means the addition of <em>0.25mol NH₄Cl</em> will convert the solution in a buffer. Also, NH₃ reacts with HCl producing NH₄⁺. Thus, addition of<em> 0.12 mol HCl</em>  will produce NH₄⁺. 0.25mol HCl consume all NH₃.

5 0
3 years ago
I promise it's easy points
Alexxandr [17]
A stars life cycle is determined by its mass it depends on the path so if it’s a large or small there life cycle
5 0
3 years ago
Other questions:
  • Which animals use the specialized roles of diver and barrier while participating in cooperative hunting?
    7·2 answers
  • Strike anywhere matches contain the compound tetraphosphorus trisulfide, which burns to form tetraphosphorus decaoxide and sulfu
    13·1 answer
  • Camphor (C10H16O) melts at 179.8°C, and it has a particularly large freezing-point-depression constant, Kf= 40.0ºC/m. When 0.186
    11·2 answers
  • What is the molar mass of BE(SO4) <br> WILL GIVE BRAINLIEST ANSWER
    5·1 answer
  • Fe2O3 + 2Al = 2Fe + Al2O3 is this a redox reaction
    14·1 answer
  • How many grams of a 19.6% sugar solution contain 72.5 g of sugar?
    10·1 answer
  • What color are the stars on the diagram with the lowest surface temperatures?
    7·1 answer
  • Explain the role light plays on the rate<br> of photosynthesis.
    15·1 answer
  • Sulfur hexafluoride, SF6, is a colorless, odorless, very unreactive gas. Calculate the pressure (in atm) exerted by 2.02 moles o
    12·1 answer
  • Diamond has a density of 3.513 g/cm³. The mass of diamonds is often measured in "carats," where 1 carat equals 0.200
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!