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
Salsk061 [2.6K]
3 years ago
12

Question 4 Unsaved When writing electron configuration the 3d block comes after the 4s block. Question 4 options: True False

Chemistry
1 answer:
zmey [24]3 years ago
6 0

Answer:

True

Explanation:

According to Aufbau's principle "sublevels with lower energies are filled up before those with higher energies".

Sublevels do not fill up in numerical order but there is a certain manner in which they are filled. The pattern is shown below:

  1s 2s 2p 3s 3p 4s 3d 4p 5s 4d 5p e.t.c

 We see that the 4s gets filled before the 3d sublevel.

You might be interested in
Answer it answer it answer it
Archy [21]

Answer:

A

Explanation:

A chemical change is when a new substance is created, which often has its own chemical properties, so A is the correct answer.

4 0
3 years ago
I need help yall ill mark brainliest :)
garri49 [273]

Answer:

How does non-human life in an urban ecosystem differ from that in an undeveloped forest ecosystem?

Explanation:

In forest eco system the people are uncivilized and not so much educated. And in urban eco system people are intelligent as well as educated this is the main reason. In an urban ecosystem, the only non-human life that live there are the ones that are able to survive under the conditions. However, in undeveloped forest ecosystems, there’s barely any pollution. Therefore, a bigger variety of non-human life is able to live here.

Mark brainliest if you can please :)

3 0
3 years ago
Suppose a platinum atom in the oxidation state formed a complex with two chloride anions and two ammonia molecules. Write the ch
Blababa [14]

Answer: Pt(Cl)2(NH3)2

Explanation:

In the formation of the complex, the oxidation number of platinum is plus two (+2) and two chloride ions cancel it out by their oxidation number of -1 each. Hence the complex has an overall charge of zero. It is thus neutral with no charge attached to its formula.

3 0
3 years ago
What is Supersaturation? (I think its D. But i dont know)
trapecia [35]

Explanation:

Supersaturation occurs with a chemical solution when the concentration of a solute exceeds the concentration specified by the value equilibrium solubility. Most commonly the term is applied to a solution of a solid in a liquid.

7 0
3 years ago
Read 2 more answers
Explain the importance of replication in scientific research
SVEN [57.7K]

Answer:

Explanation:

Replication is crucial to science. Every time researcher find something surprising that has to do with science they replicate it.

8 0
3 years ago
Read 2 more answers
Other questions:
  • WILL MARK BRAINLIEST
    11·1 answer
  • If a 3.30 m sample of a is heated to 500 k, what is the concentration of b at equilibrium?
    13·1 answer
  • Determine the number of bonding electrons and the number of nonbonding electrons in the structure of SeCl2.
    10·1 answer
  • Convert 75 minutes to days
    8·2 answers
  • Balance the chemical equation.Au plus HC l plus HNO 3 right arrow AuC l Subscript 3 Baseline plus NO plus Upper H 2 Upper OAu+HC
    5·1 answer
  • Consider the reaction, 2 D(g) + 3 E(g) + F(g) => 2 G(g) + H(g) When D is decreasing at 0.15 mol/Ls, how quickly is E decreasi
    10·1 answer
  • Is mountain lions a herbivore
    7·2 answers
  • Plz help bc this s due at exactly 3:30pm
    14·2 answers
  • 4.515 x 10^24 atoms of purellium distinkamide is equal to ___ moles?<br><br> 7.5<br> 6.2<br> 19.2
    13·1 answer
  • The amount of kinetic energy an object has depends on its:
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!