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
HACTEHA [7]
2 years ago
9

Select the correct boxes. which two elements have the same number of valence electrons?

Chemistry
1 answer:
Simora [160]2 years ago
3 0

Carbon and silicon have same number of valance electrons which is 4 electrons

Now, Barium is a 2nd group element. So, it has two valance electrons.

Silicon is a 16th group element and it has 4 valance electrons as does the carbon. This is because they both stay in the same group in the periodic table.

Neon is a noble gas which has 8 valance electrons and stays in the 18th group.

Therefore, carbon and silicon have same number of valance electrons which is 4 electrons.

<h3>What are Valence electrons ?</h3>

The electrons in an atom's outermost shell, or energy level, are called valence electrons. For instance, the valence electrons of oxygen are six, with two in the 2s subshell and four in the 2p subshell.

  • The number of valence electrons for neutral atoms is the same as the number of the atom's main group. A periodic table element's column can be used to determine its main group number. For instance, carbon, which belongs to group 4, has four valence electrons. Group 6 oxygen contains six valence electrons.

Learn more about Valence electrons here:

brainly.com/question/371590

#SPJ4

You might be interested in
What’s the formula equation for
jeyben [28]
If you have a magnesium for every oxygen, then you have to start with two magnesiums. So the balanced equation is 2 Mg + O2 2 MgO.

And

CaCO3———→CaO + CO2

I hope it helped!

7 0
3 years ago
Read 2 more answers
After 1911, most scientists accepted the theory that nucleus of an atom was very dense and very small and has a positive charge.
Yanka [14]
After 1911 most scientists accepted<span> the </span>theory<span> that the </span>nucleus<span> of an </span>atom<span> was </span>very dense<span> and </span>very small<span> and </span>has<span> a </span>positive charge<span>. </span>
8 0
3 years ago
What mass of carbon monoxide must be burned to produce 175 kj of heat under standard state conditions?
Soloha48 [4]
When 2.50 g is burned then in oxygen then 1.25kj of heat is produced.
8 0
2 years ago
Read 2 more answers
This group has characteristics including: brittleness, insulators/poor conductors, and are often found as gases.
bagirrra123 [75]

Answer:

The answer is non-metals

Explanation:

6 0
2 years ago
Read 2 more answers
When a cold front passes, the air temperature should begin to rise true or false?
sleet_krkn [62]
False the opposite should happen!
7 0
2 years ago
Read 2 more answers
Other questions:
  • Why is calgon conditioning better than phosphate conditioning?
    6·1 answer
  • Match the atoms which might substitute for one another. Match the items in the left column to the items in the right column.
    8·2 answers
  • what are 2 differences between the atomic theory described by Thompson and that described by Rutherford ?
    8·1 answer
  • How can a shoreline be destroyed by a Hurricane?
    11·2 answers
  • Suggest two reasons why copper should not be disposed of in landfill sites
    7·1 answer
  • 11 D. Organism 4 When Charles Darwin observed finches on the Galapagos Islands, he noted differences in the shapes of birds' bea
    15·1 answer
  • Please Help me it’s balancing equations
    8·1 answer
  • Brainliest if CORRECT<br><br><br><br><br><br><br> 11
    14·2 answers
  • Which of the following best describes a vacuum?<br> Hot<br> Cold <br> Shiny<br> Empty
    11·2 answers
  • Select the correct answer.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!