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
mel-nik [20]
3 years ago
9

When chromium loses two electrons, its configuration changes to

Chemistry
1 answer:
damaskus [11]3 years ago
3 0

Electronic configuration of cromium is  

Cr-[Ar]4s¹3d⁵  

When cromium loses two electrons it becomes Cr⁺².  

So its electronic configuration becomes,  

Cr⁺²-[Ar]3d⁴  

One electron will go from 4s orbital and one electron will go from 3d orbital.

So the answer here is D. [Ar]3d⁴ -because after losing 2 electrons electronic configuration of cromium becomes  [Ar] 3d⁴.


You might be interested in
Neve later believes that New Zealand's winter is caused by the sun circling to the other side
VARVARA [1.3K]

Explanation:

I need a help of math.

please can someone help me ?

3 0
2 years ago
I have 2 Valence electrons and 1 energy levels
natima [27]

Answer:

Hydrogen(H) and Heluim(He)

Explanation:

These are the only two valennce electrons and 1 energy levels.

3 0
3 years ago
Read 2 more answers
Question 5 of 10
lesya [120]

Chemical equation represents a redox reaction :

2Li + MgCl₂ → 2LiCl + Mg

<h3>Further explanation</h3>

The oxidation-reduction reaction or abbreviated as Redox is a chemical reaction in which there is a change in oxidation number

Reaction

2Li + MgCl₂ → 2LiCl + Mg

Oxidation is an increase in oxidation number, while reduction is a decrease in oxidation number.

Oxidation

\tt Li\rightarrow Li^+(0~to~+1)

Reduction

\tt Mg^{+2}\rightarrow Mg(+2~to~0)

5 0
2 years ago
I WILL GIVE BRAINLIEST
Sergeeva-Olga [200]

Answer:

waste gas he should use algae

4 0
3 years ago
If a horse is moving and then come to a stop is the horse accelerating or decelerating
quester [9]

Answer:

decelerating hope this helps❤️

7 0
3 years ago
Read 2 more answers
Other questions:
  • How many moles of sodium iodide are needed to remove 5.95×10−6 mol of o3?
    11·1 answer
  • Mixing a cocktail is it a physical or chemical change
    13·1 answer
  • Explain the Law of Conservation of Energy!
    13·2 answers
  • Select the correct answer.
    13·2 answers
  • A solid sollution starts with two liquids​
    8·1 answer
  • How many atoms are in a mole of atoms
    11·1 answer
  • The electronic configuration of Na is_________.
    13·1 answer
  • Ano ang kahalagahan ng pelikula o doyu film sa manonood​
    13·1 answer
  • 1. What allowed fusion reactions to take place in the early universe?
    11·2 answers
  • HELP!!! A nuclear engineer is designing a nuclear reactor for a new power plant. The reactor core will have an operating tempera
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!