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
DaniilM [7]
2 years ago
11

What is the electron configuration for a calcium atom? 01s². 2s 2.2p5.3s 2.3p 5.4s¹ 02s², 2s ², 2p5.3s 2.3p 6,4s1 01s 2. 2s 2. 2

p5.3s 2.3p 5, 452 Ots1,2s2, 2p5.3s 2.3p5,4s¹​
Chemistry
1 answer:
Wewaii [24]2 years ago
7 0

Answer:

Ca = 1s²2s²2p⁶3s²3p⁶4s²

Explanation:

Calcium is located in the second column and the 4th row of the periodic table. Thus, there are 2 valence electrons and the highest quantum number is 4. This is represented by 4s². However, all of the previous orbitals and electrons must be listed beforehand, making the entire electron configuration: 1s²2s²2p⁶3s²3p⁶4s².

You might be interested in
What is the density of an 84.7 g sample of an unknown substance if the sample occupies 49.6cm cubed
Ahat [919]

Answer:

             1.70 g.cm⁻³

Solution:

Data Given;

                   Mass  =  84.7 g

                   Volume  =  49.6 cm³

                   Density  =  ?

Formula Used;

                   Density  =  Mass ÷ Volume

Putting values,

                   Density  =  84.7 g ÷ 49.6 cm³ 

                   Density  =  1.70 g.cm⁻³

7 0
3 years ago
If a neutral atom has 24 electrons and 26 neutrons how many protons does it have?​
Salsk061 [2.6K]

Answer:

24

Explanation:

The number of protons in the atom of the neutral element will also be 24.

Protons are the positively charged particles in an atom.

Electrons are the negatively charged particles

Neutrons do not carry any charges at all

Now, in a neutral atom, the charge is balanced and the number of protons and electrons are the same in the atom.

So, since we have been given that the atom has 24 electrons, the number of protons will be 24.

3 0
2 years ago
Huge amount of energy is being produced in the core of a hot star due to
ss7ja [257]
The answer is below !


D.

5 0
3 years ago
Calculate the bond energy of HBr.Bond energy of H2 is 436KJ/mol and that of Br2 is 193KJ/mol.
lina2011 [118]

Answer:

ΔH3 =  1/2 (629) - ΔH^0

Explanation:

Given data:

Bond energy of H2 = ΔH1 =  436 Kj/mol

Bond energy of Br2 = ΔH2 = 193 Kj/mol

To find:

Let bond energy of HBr = ΔH3 = ?

Equation:

H2 + Br2 → 2HBr

enthalpy of formation of HBr = ΔH1 + ΔH3 - 2(ΔH3)

ΔH^0 = 436 + 193 -   2(ΔH3)

(436 + 193) - ΔH^0 = 2(ΔH3)

ΔH3 =  1/2 (629) - ΔH^0

3 0
3 years ago
By the reaction between
kap26 [50]

Answer:

ANSWER is E

Explanation:

2H₃PO₄ + 3Ca(OH)₂→ 6H₂O + Ca₃(PO₄)₂

6 0
2 years ago
Read 2 more answers
Other questions:
  • Find the Nazca plate and the South American plate. How are they different? Are they moving toward or away from each other?
    6·1 answer
  • How many moles of copper are needed to react with sulfur to produce 0.25 moles of copper sulfide
    7·2 answers
  • Please help
    15·1 answer
  • What's the molar mass of Calcium Chloride?
    12·1 answer
  • LASTIC OF POTENTIAL ENERGY
    8·1 answer
  • Which electromagnetic wave has the highest frequency?
    9·2 answers
  • Which one is bigger proton or atom
    10·2 answers
  • Is the prime meridian a longitudinal or latitudinal line?
    13·1 answer
  • Suppose you carry out a titration involving 1.90 molar CsOH and an unknown concentration of HI. To bring the reaction to its end
    9·1 answer
  • Mia is having a picnic. she will provide orange juice unsweetened tea, and sodas. She plans to make peanut butter sandwiches and
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!