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
Fantom [35]
3 years ago
14

Why does sodium have a lower melting point then magnesium

Chemistry
1 answer:
Lady bird [3.3K]3 years ago
3 0

Answer:

Number of delocalized electrons

Explanation:

Magnesium has more delocalized electrons compared to sodium and this accounts for the higher melting point.

  • When magnesium atoms comes together to form a metallic bonds, they have more network of delocalized electrons.
  • There is more pull for the localized electrons due to the nuclear charge on the nucleus.
  • This strong intermolecular metallic bond increases the melting point of magnesium.
You might be interested in
Explain what states are changing in these examples
miv72 [106K]
(A) ice to water
(B) water to water vapor
8 0
3 years ago
Please help me!!!
V125BC [204]

Answer:

solid to liquid i think

Explanation:

entropy is natural disorder in simple terms- liquid the atoms are less organised than in a solid to increased entropy as they move apart becoming disordered

at least this is how i understand it

3 0
3 years ago
Light energy (in both visible and invisible forms) is a form of _____ energy.
Ainat [17]

Answer:

D: Electromagnetic

Explanation:

Chemical energy is the energy in chemical bonds which is a type of potential energy, eliminating both B and C. While kinetic energy is the energy of motion, photons are a wave/ particle so thinking it would have kinetic energy wouldn't be your fault but light is on the electromagnetic spectrum making D the most likely answer.

7 0
3 years ago
Read 2 more answers
What are the strengths and limitations of a cell?
Dmitry [639]
Cells have limitations, if the cell is stronger it targets other cells , when a cell is weak it possibly mean it’s disease.
4 0
3 years ago
Ammonia and gaseous hydrogen chloride combine to form ammonium chloride. NH3+HCL->NH4CL
Hatshy [7]
The balanced chemical equation would be as follows:

<span>NH3+HCL->NH4CL

For this, we assume these gases are ideal gases so we can use the equation PV=nRT. We first calculate the number of moles of each reactants. We do as follows:

</span>PV=nRT
1.02 (4.21) = n (0.08206)(27+273.15)
n = 0.17 mol NH3 -------><span>consumed completely and therefore the limiting reactant</span>

PV=nRT
0.998 (5.35 L) = n (0.08206)(26+273.15) 
n = 0.22 mol HCl

<span>what mass of NH4Cl(s) will be produced?
0.17 mol NH3 (1 mol NH4Cl / 1 mol NH3 ) = 0.17 mol NH3

which gas is the limiting reactant?
 NH3 gas

which gas is present in excess?
HCl gas</span>
4 0
3 years ago
Other questions:
  • Sodiun atom, potassium atom, and cesium atoms have the same ?
    5·2 answers
  • Which technology works in conjunction with electronic collars to enable scientists to track endangered animals?
    15·1 answer
  • What is the energy absorbed in this endothermic nuclear reaction 14 7 N + 4 2 H e → 17 8 O + 1 1 H 7 14 N + 2 4 H e → 8 17 O + 1
    8·1 answer
  • As you move from row ______ to row ______ in the periodic table, the atomic radius of the elements DECREASES.
    12·1 answer
  • Which isotopes would you try to fuse to create the most stable heavy element? Explain your choices.
    6·1 answer
  • The energy transformations shown below document the
    10·1 answer
  • The sudden disappearance of a type of fossil record is evidence of
    14·1 answer
  • What elements makeup Earth's atmosphere
    8·2 answers
  • Oxygen in a 2L container is moved to a 1L container. Based on the kinetic theory of gases, the number of collisions will choose.
    11·1 answer
  • What volume is occupied by a 0.118 mol of helium gas at a pressure of 0.97 atm and a temperature of 305 K ? Would the volume be
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!