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
amid [387]
2 years ago
8

Which phrase describes a valence electron?(1 point)an electron in the innermost orbit of an atom

Chemistry
1 answer:
devlian [24]2 years ago
3 0

Answer:

an electron in the outer energy level of an atom

You might be interested in
What does the pH of a solution indicate
Nina [5.8K]
I think it’s B because I just know
8 0
3 years ago
A) Calculate the average density of the following object (assume it is a perfect sphere). SHOW ALL YOUR WORK (formulas used, num
-BARSIC- [3]

Answers:

A) 2040 kg/m³; B) 58 600 km

Explanation:

A) Density

V = \frac{ 4}{3 }\pi r^{3} = \frac{ 4}{3 }\pi\times (\text{1150 km})^{3} = 6.37 \times 10^{9} \text{ km}^{3}

\text{Density} = \frac{\text{mass}}{\text{volume}} = \frac{1.3\times 10^{22} \text{ kg} }{6.37 \times 10^{9} \text{ km}^{3}}\times (\frac{\text{1 km}}{\text{1000 m}})^{3} = \text{2040 kg/m}^{3}

<em>B) Radius</em>

\text{Volume} = \frac{\text{mass}}{\text{density}} = \frac{5.68\times 10^{26} \text{ kg} }{687 \text{ kg/m}^{3} }= 8.268 \times 10^{23} \text{ m}^{3}

V = \frac{ 4}{3 }\pi r^{3}

r^{3} = \frac{3V }{4 \pi }\

r= \sqrt [3]{ \frac{3V }{4 \pi } }

r= \sqrt [3]{ \frac{3\times 8.268 \times 10^{23} \text{ m}^{3}}{4 \pi } }= \sqrt [3]{ 1.974 \times 10^{23} \text{ m}^{3}}= 5.82 \times 10^{7} \text{ m}=\text{58 200 km}

3 0
3 years ago
Oxidation number is
zavuch27 [327]
The correct letter to your answer would be A
5 0
3 years ago
If an atom has 34 protons and 40 neutrons, what is its mass number? 40 6 74 34
Darya [45]
Protons+Neutrons
34+40= 74
7 0
3 years ago
Read 2 more answers
What is the formula for the ionic compound formed by magnesium and iodine?
MrMuchimi
The compound that is formed is: MgI2
7 0
3 years ago
Other questions:
  • The product of the measurements 2.05 cm x 32 cm should be rounded to
    8·1 answer
  • In a certain crystalline material the vacancy concentration at 25 c is one-fourth that at 80
    15·1 answer
  • What are the advantages of using a computer over a graphing calculator
    15·1 answer
  • 2 Points<br> What kind of bond would many atoms of the same metal make?
    15·1 answer
  • What is the main function of a cell membrane?
    7·2 answers
  • Elements for NaC1(5)
    9·1 answer
  • Select the correct answer.
    13·1 answer
  • On a cold, cloudy day, the local weather forecaster predicts that a high-pressure system will be moving into the area in the nex
    15·1 answer
  • 4. Naming Molecules<br> a) Describe how ionic bonds are formed at the atomic level.
    10·1 answer
  • What is the air pressure on top of the mountain?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!