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
IrinaVladis [17]
4 years ago
15

How many energy levels are partially or fully occupied in a neutral atom of calcium?

Chemistry
1 answer:
mina [271]4 years ago
6 0
18 I think. <span>Essentially because there are so many more orbitals used by the molecules placed in the series. You will see that group 1-8 molecules always have a number of valence electrons equal to the group number. This reflects s and p orbital useage. Once d and f orbitals begin to be needed, the atoms become much more complex.</span>
You might be interested in
A 1.50-kilogram ball is attached to the end of a 0.520-meter string and swung in a circle. The velocity of the ball is 9.78 m/s.
Sedaia [141]

Answer:

F centripetal force (tension) = 275.9  N

Explanation:

Given data:

Mass = 1.50 kg

Radius = 0.520 m

Velocity of ball = 9.78 m/s

Tension = ?

Solution:

F centripetal force (tension) =  m.v² / R

F centripetal force (tension) = 1.50 kg . (9.78 m/s)² / 0.520 m

F centripetal force (tension) = 1.50 kg . 95.65 m²/s² / 0.520 m

F centripetal force (tension) = 143.5 kg. m²/s² / 0.520 m

F centripetal force (tension) = 275.9  N

7 0
3 years ago
When salt water is heated leaving behind solid salt, this is separating a mixture by what method?
KatRina [158]

Answer:

option B is correct answer of this question

it is. Evaporation

5 0
3 years ago
Read 2 more answers
What is the working of NMR?
tiny-mole [99]

Answer:

NMR stands for Nuclear Magnetic Resonance, and NMR spectroscopy is the technology that makes use of the phenomena of NMR in the analysis of a material's molecular structure through measurement and observance of the nuclear spin interactions, in order to determine the biological, physical and chemical properties of the material

NMR works by the noting that some atoms in molecules placed in a strong magnetic field display the characteristics of small magnets. The application of a broad spectrum radio frequency to the molecules will cause the nuclei to resonate at particular frequencies. An NMR spectrum is formed from the measured nuclei resonant frequencies such that the graph peaks shows the correct frequencies in the sample and the peak height is directly related to the proportion or number of the nuclei which are resonating to a given frequency, such that the frequency values are indicative of the type of atoms and their distances apart from a given atom

Explanation:

4 0
3 years ago
HURRY UP ANSWER MY QUESTION
djyliett [7]

Answer:

B

Explanation:

If you remeber a balloon in hot air, it pops. This is because the molecules are moving too fast and need more space to move, thus popping the balloon. If you put a balloon in cold air, then it shrinks, the molecules not moving fast enough and don't need as much space.

8 0
4 years ago
It was concluded prices mother just the earth is assaulted in your car because​
Evgen [1.6K]

Answer:

it's not human

Explanation:

carcarcarcar

8 0
3 years ago
Other questions:
  • Calculate the percent composition by mass of the following compounds that are important starting materials for synthetic polymer
    8·1 answer
  • You are well acquainted with the negative effects of the greenhouse effect, but the fact remains that without it, Earth would be
    9·1 answer
  • Before the Internet, it was easier for small businesses to do business on a global scale. Choose the answer.
    8·2 answers
  • In the apple activity you completed which of the following is an example of a constant
    14·2 answers
  • Crystal structures with ions must have ____________.a. a positive chargeb. a negative chargec. electrical neutralityd. a 2+ char
    9·1 answer
  • What is an example of oxidation in the forest?
    11·2 answers
  • In determining the density of a rectangular metal bar, a student made the following measurements length 8 53 cm, width, 24 cm, h
    15·1 answer
  • What can be determined if only the atomic number of an atom is known?
    6·2 answers
  • 61 Cu<br> 29<br><br><br> Write the complete nuclear equations for alpha absorption
    12·1 answer
  • Part D
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!