Explanation:
The atomic radius of a non metal is larger than its neutral atom. Because the nonmetal have a tendency to gain electron and on gaining electrons, the electrons tend to repel each in the orbital.Hence, the size is increased.
The atomic radius tends to decrease from left to right as the nuclear charge increases the shielding of inner core electrons remain the same. The increased attraction of nucleus for its electrons pulls the electron inward. thus decreasing the size of atom.
N has more ionisation energy than Li
Ne has more ionisation energy than Kr
Li has more ionisation energy than Cs
<u>Answer:</u> The edge length of the unit cell is 0.461 nm
<u>Explanation:</u>
We are given:
Atomic radius of iridium = 0.163 nm
To calculate the edge length, we use the relation between the radius and edge length for FCC lattice:
Putting values in above equation, we get:
Hence, the edge length of the unit cell is 0.461 nm
Answer:
the net force us 0.............
Explanation:
please mark brain
Answer:
How many water molecules would be produced in making a polypeptide that is 72 amino acids long by dehydration reactions? 71; one less than the number
Explanation:
Heat = 1.74 kJ
<h3>Further explanation</h3>
Given
melts at 328 ℃ + 273 = 601 K
mass = 23 g = 0.023 kg
initial temperature = 297 K
Final tmperature = 702 K
Required
Heat
Solution
1. raise the temperature(297 to 601 K)
c of lead = 0.130 kJ/kg K
Q = 0.023 x 0.13 x (601-297)
Q = 0.909 kJ
2. phase change(solid to liquid)
Q = m.Lf (melting/freezing)
Q = 0.023 x 23 kj/kg = 0.529 kJ
3. raise the temperature(601 to 702 K)
Q = 0.023 x 0.13 x (702-601)
Q = 0.302 kJ
Total heat = 1.74 kJ