Write the word matching the description. Seven words are given to you, and five can be found in the text.

nuclei
fission
atom
fallout
fusion
nucleus
indecipherable

1. ancient Egyptian writing system


2. a stone coffin


3. many stone coffins


4. the unwanted radioactive by-products of nuclear energy industry


5. This is found in the centre of an atom. It also means "the central part" in general.


6. the plural form of the word above (many "central parts")


7. the splitting of something into two or more pieces


8. joining multiple parts together


9. the radioactive dust in the atmosphere after a nuclear explosion, eventually falling down to the ground


10. these consist of negatively charged electrons surrounding a positively charged nucleus


11. Ultra-modern or the newest. In the text, they described VHS video tapes as this in the 1980s.


12. Something that is very difficult to understand or read (unreadable)