Nuclear radius

Question 1

Nucleons =

Answer 1

protons + neutrons

Question 2

Graph of nuclear radius (y) against nucleon number (x)

Answer 2

curved r shape from origin

Question 3

Nuclear radius, R =

Answer 3

r0 * A^1/3

Where R is the nuclear radius, r0 is the radius of a single nucleon (about 10-15m) and A is the nucleon number.

Question 4

Nuclear radius is of the order of

Answer 4

1fm = 10^-15m

Question 5

Radius of atom ~

Answer 5

0.05nm

Question 6

Mass of proton =

Answer 6

1 atomic mass unit, u = 1.66x10^-27 kg

Question 7

Show how density relates to nucleon number

Answer 7

Density, p = m/v = Au/(4/3 * pi * R^3) = 3Au/4Apir0 = 3u/4pir0 = constant

therefore density is constant, independent of its nucleon number and the same throughout the nucleus - nucleon separation is the same regardless of the size of the nucleus and therefore evenly separated inside the nucleus

Question 8

The nucleus is under the influence of:

Answer 8

Strong nuclear force - holding nucleons together

Electrostatic force of repulsion - pushing protons apart