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
nata0808 [166]
3 years ago
12

Explain how the electron configuration of calcium, Ca, would illustrate the Aufbau Principle.

Chemistry
1 answer:
lord [1]3 years ago
8 0

Answer:

The Aufbau Principle simply helps us determine electron configuration of an atom by stating that in the ground state of an atom or ion, electrons fill subshells of the lowest available energy level, then they fill subshells of higher energy level. For example, the 1s subshell is filled before the 2s subshell is occupied. Now, when trying to figure out the electron configuration of a calcium, you need to know its atomic number to determine its amount of total electrons. Calcium has an atomic number of 20, which means it has 20 protons and 20 electrons. First remember that the "s" subshell only holds 2 electrons, the "p" subshell only hold 6 electrons, and the "d" subshell only holds up to 10 electrons. Using the Aufbau principle below, we can determine that the first two electrons will go in the 1s orbital. Since 1s can only hold two electrons the next 2 electrons go in the 2s orbital. The next six electrons will go in the 2p orbital. The p orbital can hold up to six electrons. We'll put six in the 2p orbital and then put the next two electrons in the 3s. Since the 3s is now full we'll move to the 3p where we'll place the next six electrons. We now go to the 4s orbital where we place the remaining two electrons. With this, the calcium electron configuration will be:

1s^2 2s^2 2p^6 3s^2 3p^6 4s^2

Hope that helps you understand!

You might be interested in
Where is the mass of an atom found
Virty [35]

Answer:

The mass of an atom is found in its nucleus.

Explanation:

An atom is made of three different particles: protons, neutrons and electrons.

Protons (positive charge) and neutrons (no charge) each have a mass of 1 AMU. They are both found in the nucleus (centre) of the atom.

Electrons (negative charge) are considered to have a mass of 0. Their mass is not actually 0, but very close so we do not count them. They are not in the nucleus, but found in shells surrounding the atom.

To calculate the mass of an atom, we add the number of protons and the number of electrons.

m = P + N

5 0
3 years ago
During lab, you measured the heat of reaction by mixing solutions of FeCl3 and NaOH.
Kobotan [32]

Explanation:

pls, refer to the above picture, i hope you will find it helpful.

6 0
3 years ago
Free pts *el nose boopo uwu tak a share and hav sum fun
mixas84 [53]
What i don’t get what u mean at all
4 0
2 years ago
Read 2 more answers
9. Convert 57 joules to Calories.
olchik [2.2K]

Answer:

13.6233

Explanation:

calculate the joules by dividing the energy value by 4.184

7 0
3 years ago
A 25.00 ml sample of hydrochloric acid solution, hcl, is titrated with 0.0512 m naoh solution. the volume of naoh solution requi
Tresset [83]

A 25.00 ml sample of hydrochloric acid solution, HCl, is titrated with 0.0512 m NaOH solution. the volume of NaOH solution required is 21.68 ml  then the molarity of the HCl solution is 0.044 M .

Calculation ,

Formula used : M_{1} V_{1} =M_{2} V_{2}                            ...( i )

Where M is the molarity or concentration and V is the volume in ml .

concentration of hydrochloric acid solution ( M_{1}    ) = ?

concentration of NaOH ( M_{2} ) = 0.0512 M

volume of hydrochloric acid solution  ( V_{1} ) = 25.00 ml

volume of NaOH ( V_{2} ) =  21.68 ml

Putting the value of concentration , volume of both  in equation ( i ) we get .

M_{1}   × 25.00 ml = 0.0512 × 21.68 ml

M_{1}    = 0.0512 × 21.68 ml / 25.00 ml= 0.044 M

to learn more about hydrochloric acid solution please click here ,

brainly.com/question/24586675

#SPJ4

5 0
1 year ago
Other questions:
  • Which statement correctly describes the actual yield and the theoretical yield of a reaction?
    14·2 answers
  • Find change H for the reaction as it occurred in the calorimeter.
    7·1 answer
  • during the combustion of methane one mole of methane gas combines with two moles of oxygen gas to produce one mole of carbon dio
    15·1 answer
  • How many millions of years ago did the earliest marine reptiles evolve from land reptiles?
    6·2 answers
  • _Cuo +H, → _Cu + _H,0
    15·1 answer
  • What is the number of moles in 15.0 g AsH3?
    11·1 answer
  • In a study of the following reaction at 1200 K it was observed that when the equilibrium partial pressure of water vapor is 15.0
    8·1 answer
  • Explain why isotopes of the same element behave differently in nuclear reactions but not in chemical reactions
    15·2 answers
  • What is the value of delta Hrxn for this equation:
    15·1 answer
  • Okay, no.. its not funny... who names their child happiness...
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!