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
Vesnalui [34]
3 years ago
13

What are valance electrons used for?

Chemistry
2 answers:
valentinak56 [21]3 years ago
6 0
In chemistry and physics, a valence electron is an outer shell electron that is associated with an atom, and that can participate in the formation of a chemical bond if the outer shell is not closed; in a single covalent bond, both atoms in the bond contribute one valence electron in order to form a shared pair.
Ilia_Sergeevich [38]3 years ago
3 0

Answer:

In chemistry and physics, a valence electron is an outer shell electron that is associated with an atom, and that can participate in the formation of a chemical bond if the outer shell is not closed; in a single covalent bond, both atoms in the bond contribute one valence electron in order to form a shared pair.

You might be interested in
How many nitrogen atoms are in 2.79 mo.of NH3
alexandr1967 [171]
1 mol of any particles has 6.02 * 10 ²³ particles.

If we look at 1 NH3 (1 mol NH3 or 1 molecule NH3), we can see that 1 molecule NH3 has 1 atom of N and 3 atoms of H; also 1 mole of NH3 has 1 mole of N atoms and 3 moles of H atoms.

So, 1 mol of NH3 has 1 mol of N atoms,
 and 2.79 mol NH3 have 2.79 mol of N atoms.

2.79 mol of N atoms* 6.02 * 10 ²³ N atoms/ 1 mol N atoms = 1.68*10²⁴ N-atoms 

 Answer is 1.68*10²⁴ N-atoms. 
5 0
3 years ago
Four grams of magnesium react with an excess of dilute hydrochloric acid. Calculate the volume in liters of hydrogen gas collect
Helga [31]
Sorry I am confuse 3
5 0
3 years ago
An atom of oxygen (atomic number 8) has a mass number of 17. How many neutrons are<br> in that atom?
ludmilkaskok [199]
<h2>Answer:  # of neutrons = 9</h2>

<h3>Explanation:</h3>

# of neutrons = mass number - atomic number

                      = 17 - 8

                      = 9

<h3>∴ number of neutrons in an atom of oxygen of mass number 17, is 9.</h3>
3 0
2 years ago
Give the electronic configuration of carbon atom.​
zimovet [89]

Answer:

1s2 2s2 2p2

Explanation:

it has 6 electrons in two energy levels so the sub levels are 1s, 2s and 2p

4 0
3 years ago
A crystal is a solid (or liquid) in which the constituent atoms, molecules, or ions are packed to have a ________________ as wel
yan [13]

Answer:

long range order

Explanation:

A crystal consists of atoms, ions or molecules having both short range and long range order. The atoms, ions or molecules are arranged in a regular pattern throughout the lattice both at immediate vicinities and across the entire crystal structure.

This order accounts for the definite shape and unique properties of crystals which include their sharp melting and boiling points which distinguishes them from amorphous substances.

6 0
3 years ago
Read 2 more answers
Other questions:
  • Choose all that apply.. What are the functions of corporate management?
    6·2 answers
  • Why is the Sun's effect on tides less than the Moon's effect?
    10·2 answers
  • Hydrogen chloride gas is shipped in a container under 5,100 mmHg of pressure that occupies 20.1 liters at 29°C. How many liters
    6·1 answer
  • Which of the following statements regarding isotopes is TRUE?
    8·1 answer
  • . KMnO4 oxidizes ethyl benzene to benzoic acid. If this reaction generally results in a 40 % experimental yield, how many grams
    8·1 answer
  • What is a substance combination of different atoms?
    7·2 answers
  • A change in temperature causes a change in density. \<br> True False
    15·2 answers
  • What is the empirical formula of a carbon-oxygen compound, given that a 95.2 g sample of the compound contains 40.8 g of carbon
    10·1 answer
  • Help please giving 10 points and brainlyiest
    14·2 answers
  • Show all calulations
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!