Across
- 7. imparting or exchanging of information or news..
- 10. measure of the amount of matter contained in or constituting a physical body.
- 14. to change, fail, or give way; not stable.
- 15. Fission:is a process in nuclear physics in which the nucleus of an atom splits into two or more smaller nuclei as fission products,
- 16. colorless, odorless reactive gas
- 17. change which is a result or consequence of an action or other cause.
- 20. the chemical element with the symbol H and atomic number 1.
- 21. photon is a type of elementary particle
- 22. stable isotope of hydrogen with a mass approximately twice that of the usual isotope.
- 23. chemical element of atomic number 2
Down
- 1. separate and distinct.
- 2. as a source of nuclear energy.
- 3. chemical element of atomic number 6.
- 4. particular place or point.
- 5. close to; almost.
- 6. radioactive isotope of hydrogen with a mass approximately
- 7. container, typically made of glass or plastic
- 8. :Payload is the carrying capacity of an aircraft or launch vehicle,
- 9. :a subatomic particle of about the same mass as a proton but without an electric charge,
- 11. wind:the continuous flow of charged particles from the sun which permeates the solar system.
- 12. strength and vitality required for sustained physical or mental activity.
- 13. series of events that are regularly repeated in the same order.
- 17. stable subatomic particle with a charge of negative electricity
- 18. emission of energy as electromagnetic waves or as moving subatomic particles.
- 19. hydride:DescriptionThe helium hydride ion or hydroxide helium ion or helium is a cation with the chemical formula HeH⁺.