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
LenaWriter [7]
3 years ago
8

In which pair do both atoms have one electron only in an s orbital in their ground states?

Chemistry
1 answer:
lora16 [44]3 years ago
4 0
The answer to this is letter D.

Chromium's electron configuration is <span>1s2 2s2 2p6 3s2 3p6 3d5 4s1, where the last electron is in the s orbital with only 1. As for Li, it is found in the group 1 metals, and it is a fact that all elements under this group has the their last electron to be in the s orbital with only one electron in their outermost shell. 

</span>The electron configuration<span> associated with the lowest energy level of the atom is referred to as </span>ground state and each electron ion is in the lowest energy level possible. When the moment comes that electrons go into a higher level of energy, that is what we call the excited state. 
You might be interested in
45 The mass of an unidentified metal sphere is 133 grams. Students determine the
Lisa [10]

Answer:

D Cobalt

Explanation:

The volume of the sphere is  40 -25 = 15 cm^3

Density = mass/volume = 133 gm / 15 cm^3 = 8.87 gm/cm^3

  which corresponds to Cobalt from the chart

7 0
2 years ago
The total volume of a soda can is 415 mL. Of this 415 mL, there is 60.0 mL of headspace(empty space aka volume) for the CO2 gas
almond37 [142]

Answer:

gay

Explanation:

6 0
2 years ago
Which of the following shows the correct order of the inner planets?
Sonbull [250]

Mercury, Venus, Earth,Mars

4 0
2 years ago
Read 2 more answers
What aqueous solution has the highest boiling point at standard pressure? A) 1.0 M KCl(aq) B) 1.0 M CaCl2(aq) C) 2.0 M KCl(aq) D
Lapatulllka [165]
The increase in the boiling point of a solvent is a colligative property.


That means that the increase in the boling point will be related to the number of particles (molecules or ions) present in the solution.


The higher the number of particles (molecules or ions) the higher the increase in the boiling point.


All the aqueous solutions presented are electrolytes, i.e. the solutes are ionic compounds.


Then, you have to compare the number of ions that you have in each solution.


A) 1.0 M KCl ---> 1.0 M K+     +      1.0 MCl-    = 2 moles of particles / liter


B) 1.0 M CaCl2 --> 1.0M Ca(2+)      +      1.0M * 2 Cl (-)    = 3 moles of particle / liter


C) 2.0M KCl ---> 2.0 M K+      +      2.0 M Cl-  = 4 moles of particle / liter


D) 2.0 M CaCl2 ----> 2.0 M Ca (2+)      + 2.0M * 2 Cl (-)  = 6 moles of particle / liter.


Then, the solution 2.0M CaCl2(aq) has the highest increase in the boiling point.


Answer: option D) 2.0 M Ca Cl2(aq)
5 0
3 years ago
According to Le Châtelier's principle, what happens if heat is added to a system? apex
anzhelika [568]

Explanation:

Le Chatelier's principle states that for a long period of time if a system is at equilibrium and it is subjected to change in concentration, temperature, volume or pressure then the system shifts to a new equilibrium.

This change will partly counter acts the applied change.

Therefore, when heat is added to the system then equilibrium will shift to the side where temperature or heat is reduced again.

For example,    A + 2B \leftrightharpoons C + D      

Since heat is added to the system, hence, system will shift to the left side or we can say equilibrium will shift to the backward direction.

4 0
3 years ago
Read 2 more answers
Other questions:
  • If Kp = 0.15, which statement is true of the reaction mixture before any reaction occurs?
    8·1 answer
  • Calculate the density of an object with a mass of 30g and volume of 6cm^3
    14·1 answer
  • How do i make a friend?
    5·2 answers
  • At 1.0atm a gas has a volume of 36.7 L, what is the volume at 5.3atm?
    6·1 answer
  • Which predictions can most likely be made?
    11·2 answers
  • Starch is considered a biological polymer because it contains repeating units (C6H10O5)n.
    12·2 answers
  • Un sistema formado por una única sustancia, ¿será siempre homogéneo? ¿Porqué? Piensa a partir de las definiciones y trata de cor
    13·1 answer
  • Which of the following is the best explanation of why an ionic compound formula is a ratio of atoms
    14·1 answer
  • Write a scientific argument that addresses the question: Why is Jackie an elite distance runner when no one else
    5·1 answer
  • Using this illustration, what is the chemical formula? Picture and possible answers are below.
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!