Why does lithium have a higher ionization energy compared to sodium?

Chemistry

1 answer:

frez [133]3 years ago

3 0

Answer:

There are 11 protons in a sodium atom but only 3 in a lithium atom, so the nuclear charge is much greater. ... The only factor left is the extra distance between the outer electron and the nucleus in sodium's case. That lowers the ionization energy.

You might be interested in

A sample of an unknown compound is vaporized at 170 C. The gas produced has a volume of 1980 ml at a pressure of 1 atm, and it w

Ede4ka [16]

Answer:

The molar mass is 95.7 g/mol

Explanation:

As the vapor formed is showing ideal gas behavior, it will obey ideal gas law.

PV = nRT

Where

P = Pressure = 1 atm

V = volume = 1980 mL = 1.98 L

n = moles of gas

R = gas constant = 0.0821 L atm /mol K

T = Temperature = 170 °C = 170+273 = 443 K

Putting values

1 X 1.98 = n X 0.0821 X 443

n = moles = 0.054 mol

the relation between moles and molar mass and mass is:

$moles=\frac{mass}{molarmass}$

Therefore

$molarmass=\frac{mass}{moles}=\frac{5.17}{0.054}= 95.7 g/mol$

7 0

4 years ago

How many moles of methanol must be added to 4.50 kg of water to lower its freezing point to -10.0 ∘c? for each mole of solute, t

Svetach [21]

We use the concept on colligative properties to calculate the number of moles in the system above. We calculate as follows:

ΔT = -kf(m)

where ΔT is the change in freezing point, kf is the freezing point depression and m is the molality of the solution.

-10 = -1.86(m)
m = 5.37 mol/kg

number of moles = 5.37 (4.50) = 24.19 moles of methanol

4 0

4 years ago

Hydrangea plant's petals change to which colour on the addition of acids?

Black_prince [1.1K]

If it's a pH below six it's blue, if it's a pH between 6 and 7 then it would be purple, if it's above 7 it would be pink or red

4 0

4 years ago

What is the frequency of a wave with a wavelength of 6.40 x 104 meters??

Zina [86]

Answer:- $4.69*10^3Hz$