Chemistry, 21.07.2019 15:10 mahmudabiazp3ekot

24. which of the following items is false about ionization energy change with removal of valence electrons?

24. which of the following items is false about ionization energy change with removal of valence ele

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Answer from: kloekamakeeaina14

Option C. Na+ has the inert gas structure of argon is false. Sodium has 11 protons and 11 electrons. When it loses an electron and forms Na+, it has 11 protons and 10 electrons. The inert gas that has 10 electrons is Neon not Argon. Argon has 18 electrons.

Further Explanation:

A. Na+ electron configuration is like the stable inert gas configuration - TRUE

Na has an electron configuration of 2,8,1 (or $1s^2 \ 2s^2 \ 2p^6 \ 3s^1$ ). When it loses its valence electron, its electron configuration becomes 2,8 (or $1s^2 \ 2s^2 \ 2p^6$ ). This is similar to the electron configuration of Neon which has a full valence shell. A full valence shell has 8 electrons.

B. To remove the second electron, the increased attraction of protons to electrons must be overcome - TRUE

Ionization energy is the amount of energy needed to remove a valence electron from a gaseous atom. This energy is required to overcome the attraction of the valence electron to the nucleus. The closer the orbital (i.e. the electron), the stronger the attraction of the electrons to the nucleus. Hence, removing a second electron, which is now closer to the nucleus than the first, will require more energy to overcome its stronger attraction to the protons in the nucleus.

C. Na+ has the inert gas structure of Argon - FALSE

The electron structure of Na+ is 2,8 (or $1s^2 \ 2s^2 \ 2p^6$ ).

The electron structure of Ar is 2,8,8 ( or $1s^2 \ 2s^2 \ 2p^6 \ 3s^2 \ 3p^6$ ).

D. Both A and C are False - FALSE

Only C is false.

E. Items A, B, and C are False - FALSE

A and B are true. Only C is false.

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Learn more about inert gas Learn more about electron affinity Learn more about electron configuration

Keywords: ionization energy, electron configuration

Answer from: Quest

both adhesion and cohesion are attractions.

they are different in that adhesion is the force of attraction between the molecules of two different substances, whereas cohesion is the force of attraction between molecules of the same substance.

possible examples include capillary action, in which the adhesion between water and glass causes the water to rise in a narrow tube against the force of gravity.

because of hydrogen bonding, water is extremely cohesive.

this causes molecules on the surface of water to be drawn inward, which is why drops of water form beads on smooth surfaces.

hope this .

Answer from: Quest

The answer should be vaporization

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24. which of the following items is false about ionization energy change with removal of valence ele...