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wel
2 years ago
10

choose the true statement(s) about ions. to be marked correct, you’ll need to select all true statements, as there may be more t

han one correct answer.
Chemistry
1 answer:
mash [69]2 years ago
7 0

Cations have more protons than electrons, Anions result when atoms gain an electron.

<h3>What are electrons ?</h3>

The electron, a subatomic particle, has a negative one elementary charge electric charge. The electron, a member of the first generation of the lepton particle family, is usually regarded as an elementary particle because it has no known components or substructure.

<h3>How electrons are in an atom ?</h3>

A few straightforward rules can be used to calculate the quantity of protons, neutrons, and electrons present in an atom. The atomic number and the number of protons in the atom's nucleus are equal (Z). A neutral atom has the same number of protons and electrons as protons.

Around the nucleus, electrons are positioned in several shells. Only a fixed amount of electrons can fit in each subsequent shell. Filling begins with the innermost shell.

To know more about nucleus visit :

brainly.com/question/23366064

#SPJ4

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Which molecular solid would have the highest melting point?
TEA [102]

Answer:

Choice B. The solid with hydrogen bonding.

Assumption: the molecules in the four choices are of similar sizes.

Explanation:

Molecules in a molecular solid are held intact with intermolecular forces. To melt the solid, it is necessary to overcome these forces. The stronger the intermolecular forces, the more energy will be required to overcome these attractions and melt the solid. That corresponds to a high melting point.

For molecules of similar sizes,

  • The strength of hydrogen bonding will be stronger than the strength of dipole-dipole attractions.
  • The strength of dipole-dipole attractions (also known as permanent dipole) will be stronger than the strength of the induced dipole attractions (also known as London Dispersion Forces.)

That is:

Strength of Hydrogen bond > Strength of Dipole-dipole attractions > Strength of Induced dipole attractions.

Accordingly,

Melting point due to Hydrogen bond > Melting point due to Dipole-dipole attractions > Melting point due to Induced Dipole attractions.

  • Induced dipole is possible between all molecules.
  • Dipole-dipole force is possible only between polar molecules.
  • Hydrogen bonds are possible only in molecules that contain \rm H atoms that are bonded directly to atoms of \rm F, \rm O, or \rm N.

As a result, induced dipoles are the only force possible between molecules of the solid in choice C. Assume that the molecules are of similar sizes, such that the strengths of induced dipole are similar for these molecules.

Melting point in choice B > Melting point in choice D > Melting point in choice A and C.

8 0
3 years ago
Heptane and water do not mix, and heptane has a lower density (0.684 g/mL) than water (1.00 g/mL). A graduated cylinder contains
Alekssandra [29.7K]

Answer:

TRY HARD!

Explanation:

DO UR WORK ANG GET IT DONE!

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1 year ago
To what family of the periodic table does this new element probably belong
julsineya [31]
<span>Ionization energy (IE) is the amount of energy required to remove an electron. If you observe the IEs sequentially, there is a large gap between the 2nd and 3rd. This suggests it is difficult to remove more than 2 two electrons. Elements that lose two electrons to become more stable are found in the Group 2A (2 representing the number of electrons in the outermost valence shell).</span>
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Answer:

Mutualism

Explanation:

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An aquifer is a permeable rock which can contain or transfer water.

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