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
Finger [1]
4 years ago
13

How many valence electrons are in a neutral atom of magnesium?

Chemistry
1 answer:
Lynna [10]4 years ago
5 0
There are 2 valence elcetrons
You might be interested in
Is helium is lightest monatomic element chemical properties
Anton [14]
Hydrogen is the only lighter element
6 0
3 years ago
Which of the fallowing scientific claims about the bond in the molecular compound HF is most likely to be true?
DENIUS [597]

The bond is highly polar is the scientific claim about the bond in the molecular compound HF is most likely to be true.

The term polar means that there is separation of charges, the bonds will be the more polar the greater the difference in electronegativity between the bonded atoms.

  • In hydrogen fluoride, for example, F is more electronegative than H because its nucleus, with 9 positive charges, attracts e-shares with H more strongly than the nucleus of H, with only one positive charge.

  • Therefore, the e- shared by covalence will be closer to F than to H and the molecule forms a permanent dipole.

Therefore, we can conclude that the bond is highly polar is the scientific claim about the bond in the molecular compound HF is most likely to be true.

Learn more here: brainly.com/question/6205088

6 0
3 years ago
A chemist wants to observe the following reaction:
stiv31 [10]

It take more energy to break the bonds of the reactants and less energy is given off when the product bonds are formed.

<h3>What is Energy?</h3>

Energy is defined as the ability to do work. Work is done in the breaking or formation of bonds.

The standard Enthalpy (ΔH) of water which was formed in the given reaction is negative.

ΔH= Δproduct - Δreactant

This means that the energy to break the bonds of the reactants is more.

Read more about Enthalpy here brainly.com/question/14291557

3 0
2 years ago
What energy is based on height?
raketka [301]

Answer:

Potential Energy

Explanation:

Potential energy is also called gravitational potential energy and it is based on the height of an object.

3 0
3 years ago
Humans absorb oxygen from the air they breathe in and exhale carbon dioxide gas, CO2.Carbon dioxide gas is
Alex

Answer:

A

an element made of carbon and oxygen atoms.

7 0
3 years ago
Read 2 more answers
Other questions:
  • Calculate the standard entropy of vaporization of ethanol, C2H5OH, at 285.0 K, given that the molar heat capacity at constant pr
    14·1 answer
  • A chemical engineer is developing a process for producing a new chemical. One step in the process involves allowing a solution o
    9·2 answers
  • Why do strong bonds exist between water molecules? They have nonpolar structure. They are held together by hydrogen bonds. The h
    11·1 answer
  • A gas occupies 72.1 L at STP. At what temperature Kelvin would the gas occupy 85.9 L at a pressure of 93.6 kPa?
    13·1 answer
  • A student needs to make a solution of 308 mL of 0.02 M of Copper (II) Sulfate. All they have available is a solution of 0.250 M.
    13·1 answer
  • What is the coefficient for O2 in the balanced version of the following chemical equation: C2H4+O2→CO2+H2O
    8·1 answer
  • 4. A,B,AB or O. <br><br><br> 5. A,B,AB or O<br><br><br> 6. A,B,AB or O
    7·1 answer
  • Which of these has an oxidation number of zero (0)? Cal2, Ca CaS, Ca3N2​
    12·1 answer
  • Use the drop-down menus to identify each organic reaction as an addition, substitution, elimination, or condensation reaction. (
    5·1 answer
  • In which direction does heat flow? a. down b. up c. from a cold substance to a cold substance d. from a warm substance to a cold
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!