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When an atom of an electropositive atom becomes an ion, it
a) gains electrons
b) becomes larger
c) emits an alpha particle
d) does none of these

What is the answer and why? If the answer is D, then please explainwhat it would do. Thanks!

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Related questions

Nuclear fission is the splitting of an atom and the process emits enormous amounts of energy. When uranium is bombarded by a neutron the reaction results in barium, krypton, three neutrons and energy. The three neutrons are produced in the reaction play a critical role in nuclear energy. Why is it necessary that each fission event produce more than one neutron to sustain the chain reaction discussed above? What role do these neutrons play in an atomic bomb? Please use more than 100 words.

Carbon monoxide binds strongly to the Fe2+ ion of the heme group of hemoglobin and myoglobin and thus prevents transport and storage of oxygen in blood. First consider free carbon monoxide. The bond in a 12C16O molecule has a force constant of 1860 N/m. For diatomic molecules the effective mass and vibrational frequency are defined in the following equations:
u = mAmB/(mA + mB) v = 1/(2pi) x (kf/u)1/2

A) Calculate the vibrational frequency of 12C16O.

B) What is the vibrational wavenumber for 12C16O?

C) Assuming that isotopic substitution does not affect the force constant of the C=O bond, calculate the vibrational wavenumbers for 13C16O, 12C18O, and 13C18O.

D) Next, assume that the atom that binds to the Fe2+ becomes immobilized and that the hemoglobin or myoglobin protein is infinitely more massive than either the carbon or oxygen atom. Also assume that the carbon monoxide peak is distinct in an infared spectrum of a C=O-myoglobin complex. Comparing the spectra of different isotopes of carbon monoxide can be used to identify whether the carbon or oxygen atom of the carbon monoxide molecule binds the Fe2+ ion. Use the following equation to predict what the force constant would be if the carbon atom binds the Fe2+ion and if the oxygen atom binds the Fe2+ ion.

kf = m(2pi c y?)2
where m is the mass of the atom not bound to Fe2+, c is the speed of light, y? is the wavenumber.

Answer true or false.

(a) When a substance is oxidized, it loses electrons.

(b) When a substance gains electrons, it is reduced.

(c) In a redox reaction, the oxidizing agent becomes reduced.

(d) In a redox reaction. the reducing agent becomes oxidized.

(e) When Zn is converted to Zn2+ ion, zinc is oxidized.

(f) Oxidation can also be defined as the loss of oxygen atoms and/or gain of hydrogen atoms.

(g) Reduction can also be defined as the gain of oxygen atoms and/or loss of hydrogen atoms.

(h) When oxygen, O2, is converted to hydrogen peroxide, H2O2, we say that O2 is reduced.

(i) Hydrogen peroxide, H2O2, is an oxidizing agent.

(j) All combustion reactions are redox reactions.

(k) The products of complete combustion (oxidation) of hydrocarbon fuels are carbon dioxide, water, and heat.

(l) In the combustion of hydrocarbon fuels, oxygen is the oxidizing agent and the hydrocarbon fuel is the reducing agent.

(m) Incomplete combustion of hydrocarbon fuels can produce significant amounts of carbon monoxide.

(n) Most common bleaches are oxidizing agents.

 

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