NUCLEAR PHYSICS Crossword

...... is located at the centre of an atom.
...... are protons and neutrons.
The majority of the mass of an atom is in its ......
The number of protons in an atom.
Represented by the letter A.
Atoms with the same proton number but different nucleon numbers.
......... is used for cancer treatment in a process called radiotherapy
Radiation that reaches the Earth from space.
The process in which unstable nuclei disintegrate.
Only Alpha particles can be detected by this equipment.
Equipment to determine half-life that can be connected to a loudspeaker.
.......... occurs randomly over space and time.
A helium nucleus consisting of two protons and two neutrons.
...... particles are attracted towards a positively charged plate.
Type of radiation with highly penetrating power.
The release of radiation by unstable nuclei.
The original nucleus is called the parent nucleus and the formed nucleus is called the ..... nucleus
The element formed when Uranium-235 undergo alpha decay
The time taken for half of the radioactive nuclei to decay.
The radioactive atoms in a substance decay to become stable atoms. It was found that after 152 seconds, 46.875 atoms out of the 50 atoms have decayed. What is the half life of the substance?
............. include wearing radiation suits, reducing exposure time etc.