Click for solutions
√
number of protons
number of neutrons
6
6
8
The force on an object due to gravity
Click for solutions
√√√
√
92
4
2
233
7
0
-1
14
The force on an object due to gravity
Click for solutions
√√√
√Positive as it repelled the positive alpha particles
The force on an object due to gravity
Click for solutions
√√
√
for each half life multiply by ½
¼ = ½ x ½ = 2 half lives
2 half lives = 138 x 2 = 276 days
The force on an object due to gravity
Click for solutions
√√√
√
half life = time it takes the initial activity to halve.
The force on an object due to gravity
Click for solutions
√ √√
√
Two light nuclei join together to produce a larger nucleus
A large nucleus splits and produces smaller nuclei
Production of electricity in nuclear power stations
The Sun