Chemistry, 15.10.2019 16:30 tatia65

For which of these elements would the first ionization energy of the atom be higher than that of the diatomic molecule? helium oxygen carbon lithium explain why and

Answers: 2

Show answers

Answers

Answer from: kay4358

The first ionization energy of the element will be highest for $\boxed{{\mathbf{helium}}}$ atom than it’s diatomic ${\text{H}}{{\text{e}}_2}$ .

Further explanation:

Ionization energy:

Ionization energy is defined as the amount of energy that is required to remove the most loosely bound valence electrons from the isolated neutral gaseous atom. It is denoted by IE. The value of IE is related to the ease of removing the outermost valence electrons.

The elements whose electronic configuration contains one or more electrons more than the valence shell of a noble gas can easily remove their valence electrons by even a small amount of energy. Hence the ionization energy associated with such element is least.

The numbers of electrons present in the valence shell determine whether the ionization energy will be low or high. The electronic configuration of helium is .it has already fully filled electronic configuration. All the electrons are paired. So it cannot remove any electron howsoever high energy is provided.

The electronic configuration of lithium is ${\mathbf{1}}{{\mathbf{s}}^{\mathbf{2}}}{\mathbf{2}}{{\mathbf{s}}^1}$ . It has one additional electron that can be removed so its first ionization energy is low. The lithium-ion thus formed can readily combine with lithium cation and form dilithium.

The electronic configuration of carbon is ${\mathbf{1}}{{\mathbf{s}}^{\mathbf{2}}}{\mathbf{2}}{{\mathbf{s}}^{\mathbf{2}}}{\mathbf{2}}{{\mathbf{p}}^2}$ .It can also lose electron as the electrons present in 2s are relatively loosely held compared to the electrons in 2s subshell. It has been found that energy of nearly $1086.4{\text{ kJ/mol}}$ is required to ionize the first electron out of carbon.

The electronic configuration of oxygen is ${\mathbf{1}}{{\mathbf{s}}^{\mathbf{2}}}{\mathbf{2}}{{\mathbf{s}}^{\mathbf{2}}}{\mathbf{2}}{{\mathbf{p}}^4}$ .It can also lose electron as the electrons present in 2s are relatively loosely held compared to the electrons in 2s subshell. It has been found that energy of nearly $1313.9{\text{ kJ/mol}}$ is required to ionize the first electron out of carbon.

Therefore the electron that is removed with most difficulty is helium.

Learn more:

1. The subatomic particle with the least mass:

2. Oxidation and reduction reaction:

Answer details:

Grade: High School

Subject: Chemistry

Chapter: Periodic classification of elements

Keywords: Periodic properties atomic structure groups, periods, periodic law chemical properties ionization enthalpy, electronegativity,atomic radii, effective nuclear charge, valence shell, electronic configuration.

Answer from: Quest

the answer would be b i believe

Answer from: Quest

answer: mole of the gas

answer: mole of the gasexplanation:

answer: mole of the gasexplanation: this is because 1 mole of a gas is 22.4dm³, which is use in ideal gas

Another question on Chemistry

Chemistry, 22.06.2019 02:40

For a patient with the following pes statement and interventions, which would be the most appropriate monitoring and evaluating data? pes statement: inadequate calcium intake related to food and nutrition related knowledge deficit as evidenced by statements that the only dietary source of calcium is milk and she believes that she is lactose intolerant. patient’s nutrition prescription is for a diet providing 1200 mg calcium per day. patient was provided with in-depth nutrition education on alternative dietary and supplement sources of calcium. a. calcium intake (at subsequent visit) b. knowledge assessment by asking patient to identify food sources from menus and shopping list (at the end of the current visit) c. serum calcium (at next visit) d. both a and b e. both a and c

Answers: 2

Answer

Chemistry, 22.06.2019 15:30

Count the number of each type of atom in the equation below, and then balance the equation. write in the numbers of atoms and coefficients. add a 1 if there should be no coefficient. cs2(l) + o2(g) → co2(g) + so2(g) c [ ] s [ ] o > c [ ] s [ ] o [ ] cs2(l) + [ ] o2(g) > [ ] co2(g) + [ ] so2(g)

Answers: 3

Answer

Chemistry, 22.06.2019 20:30

Draw a line graph showing the relationship between temperature in kelvin as a function of kinetic energy.

Answers: 3

Answer

Chemistry, 23.06.2019 04:00

Why must humans find substitutes for many minerals found on earth? (a) form at an extremely slow rate (b) controlled by other countries (c) too deep in the earth to collect

Answers: 1

Answer

You know the right answer?

For which of these elements would the first ionization energy of the atom be higher than that of the...

Questions