For an unknown element, I3 = 1.5 × I2 and I4 = 4.2 × I3, where...

For an unknown element, I3 = 1.5 × I2 and I4 = 4.2 × I3, where In,s are the consecutive ionization energies. Which of the following can be the unknown element?

Expert Solution

The problem should be solved as:

I3=1.5×I2 (eqn 1)

I4=4.2×I3 (eqn 2)

Putting value of I3 in eqn 2

I4= 4.2×(1.5×I2)

=6.3I2

Therefore I4=6.3I2 (eqn 3)

Now, the looking at the literature values of I1,I2,I3,I4 and placing eqn 3 as the condition, we see that Alumunium is the probable element,

As I2=1817 kJ/mol (literature value)

I4= 1817×6.3 = 11447.1 kJ/mol

Which matches very closely to the literature I4 value of Alumunium.

queen_honey_blossom answered 2 years ago

what would the kvl be if -330i1-470i2-860i2+9=0 and -6-12-560i3-860i2+9=0 and -330i1-470i1+560i3+12+6=0 and i2=i1+i3.find i1, i2, i3.

Question 5 b) Determine the value of the current I1,I2,I3 and I4 indicated on the diagram...

Question 5 b) Determine the value of the current I1,I2,I3 and I4 indicated on the diagram below; CR[10marks] c) A capacitor C is connected in series with a 40 Ω resistor across a supply of frequency 60 Hz. A current of 3A flows and the circuit impedance is 50 Ω, Calculate: (i) the value of capacitance, C, (ii) the supply voltage, (iii) the phase angle between the supply voltage and current, (iv) the p.d. across the resistor, (v) the p.d....

An unknown element has the following ionization energies:

An unknown element has the following ionization energies:Please answer all questionsIE1 = 570 kJ/mol IE2 = 1431 kJ/mol IE3 = 2023 kJ/mol IE4 = 10,521 kJ/mol IE5 = 13,288 kJ/mol a) Based on this information, how many valence electrons does this element have?Explain your answer.b) In view of your answer in part a), what charge would this element likely form, and would it be a metal or non-metal? (Assume it is not a metalloid). Explain.

This question is based on the following cash flows C0=$10,000 I1=$2,000 I2=$2,000 I3=$3,000 I4=$3,000 I5=$2,500 L=$1,000...

This question is based on the following cash flows C0=$10,000 I1=$2,000 I2=$2,000 I3=$3,000 I4=$3,000 I5=$2,500 L=$1,000 0 1 2 3 4 5 C: Cost, I: Income, L: Salvage The escalation rate is 10% per year in this example. Calculate the NPV of this investment assuming an escalated dollar minimum rate of return of 8%

An unknown element is a nonmetal and has a valence electron configuration of ns2np4. a. How...

An unknown element is a nonmetal and has a valence electron configuration of ns2np4. a. How many valence electrons does this element have? b. What are some possible identities for this element? c. What is the formula of the compound this element would form with potassium? d. Would this element have a larger or smaller radius than barium? e. Would this element have greater or smaller ionization energy than fluorine?

The successive ionization energies of a certain third-period element are I1 = 577.9KJ/mol, I2 + 1820...

The successive ionization energies of a certain third-period element are I1 = 577.9KJ/mol, I2 + 1820 KJ/mol, I3 = 2750 KJ/mol, I4 = 11600 KJ/mol, I5 = 14800 KJ/mol. what element do these ionization energies suggest? Explain your reasoning.

Two parallel wires separated by d=30 cm carry currents of I1=2.0 A and I2=1.5 A in...

Two parallel wires separated by d=30 cm carry currents of I1=2.0 A and I2=1.5 A in the same direction. (a) [6] Use Ampere’s law to find the magnitude and direction of the field B21 on wire 2 created by the current in wire 1. Explain your use of the right-hand rule to determine the direction of the magnetic field B21. (b) [6] What is the magnitude and direction of force exerted on wire 2 by the current in wire 1?...

The successive ionization energies of a certain element are: I1 = 899 kJ/mol, I2 =1,757 kJ/mol,...

The successive ionization energies of a certain element are: I1 = 899 kJ/mol, I2 =1,757 kJ/mol, I3= 14,850 kJ/mol, I4 = 21,005 kJ/mol, This pattern of ionization energies suggests that the unknown element is:

The first two ionization energies of an unknown element are as follows: 1st I.E = 496...

The first two ionization energies of an unknown element are as follows: 1st I.E = 496 kJ/mol 2nd I.E = 4560 kJ/mol Predict which group this element belongs to and write down the electron configuration of its valence electrons Q2. Explain why the first ionization energy of sulfur is inferior to that of phosphorus

Differentiate between an input element of type text and a textarea element, indicating where you would...

Differentiate between an input element of type text and a textarea element, indicating where you would be most likely to use each.

Question