Arrange the elements in order of increasing electronegativity. Use the periodic table to help you arrange the elements.
2 answers:
The question is incomplete, the elements to be arranged as required are shown in the image attached to this answer.
Answer:
K<Mg<P<O
Explanation:
Electronegativity is the ability of an atom of an element in a compound to attract the shared electrons of a bond towards itself. Atoms of highly electronegative elements tend to polarize a covalent bond leading to polar covalent bonds and dipole moments. Electronegativity increases across the period but decreases down the group hence the arrangement of elements in the answer provided above.
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Answer:
Argon
Explanation:
The average kinetic energy of the particles in a gas is given by
where
m is the mass of the particles
v is their rms speed
The average kinetic energy of the particles in a gas can also be written as
where
k is the Boltzmann's constant
T is the absolute temperature of the gas
Combining the two equations,
We can re-write the equation as
We see that:
- The speed is directly proportional to the square root of the temperature
- The speed is inversely proportional to the square root of the mass of the particles
Therefore, if the two gases are at same temperature, the particles will move faster in the gas with lighter particles (smaller mass).
Since Krypton atoms have larger mass than Argon atoms, it means that atoms in Argon move faster than in Krypton.