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Vedmedyk [2.9K]
3 years ago
11

The attractions that allow molecules of krypton to exist in the solid phase are due to:

Chemistry
1 answer:
OLga [1]3 years ago
7 0

Answer:

4) Van der waals forces

Explanation:

Krypton (Kr) belongs to the noble gas group and has fully filled valence orbitals. In the solid phase, Kr exists as a white solid with a face centered cubic structure.

Intermolecular forces of attraction from the strongest to the weakest include:

Ionic > hydrogen bonding > dipole-dipole > london dispersion

Kr is monoatomic and non-polar. When fully filled (stable) valence orbitals of 2 Kr atoms approach each other in close proximity they experience a repulsive force which prevents the formation of strong bonds. Thus, the only force of attraction in Kr is the long range weak Van Der Waals force also known as the london dispersion force.

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4 0
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The image shows the representation of an unknown element in the periodic table. A square is shown. Inside the square twelve is w
avanturin [10]

Answer:

The combined mass of all the protons and electrons is 24.305.

Explanation:

From the information given about the atom, we can see that the relative atom mass of the element is 24.305.

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7 0
3 years ago
Which species acts exclusively as spectator ions in this reaction
adelina 88 [10]

Answer:

K^+ and NO3^-

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Consider the reaction;

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Which of the following statements correctly characterizes the subatomic particle
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Its mass is about the same as that of a proton

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