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How well do you know Science?

By: Davin Driskell
Across
The force that causes protons and neutrons to be attracted to each other.
Most nuclei that contain more than 83 protons are____.
Plural form of nucleus.
The breaking down of atomic nuclei by releasing particles or electromagnetic radiation.
Atoms with different numbers of neutrons.
Electromagnetic waves with extremely short wavelengths.
Something that uses energy from controlled nuclear reactions to generate electricity.
Electrically neutral particle inside the nucleus of an atom.
The minimum amount of fissile material needed to maintain a nuclear chain reaction.
Particle with a negative charge in the nucleus of an atom.
Time it takes for half of atoms in a substance to decay.
An important material used for nuclear energy.
The self-sustaining fission reaction spread by neutrons that occurs in nuclear reactions.
Any radioactive material that results when radioactive materials are used.
A particle with the mass of an electron but a positive charge.
Down
Substance containing a radioisotope that is used to measure the speed of chemical processes.
______ will stop most alpha particles.
The splitting of an atomic nucleus into two smaller fragments.
The joining of two lightweight atomic nuclei into a single heavier nucleus.
A charged particle.
A particle that consists of two protons and two neutrons.
Instruments used for ionizing radiation.
The changing of one element into another by radioactive decay.
Vessel filled with a super-heated transparent liquid used to detect electricity.
Particle detector used for detecting electricity.
Gamma Rays can be stopped by _____.
An example of fusion.
It takes a sheet of _____ to absorb most beta particles.
Particle in the nucleus with a positive electric charge.