Across
- 5. electromagnetic waves with the longest wavelengths and lowest frequencies
- 7. waves with wavelengths between radio and visible light
- 8. Regions of space that consecutively surround the nucleus of an atom.
- 12. A combination of chemical symbols and numbers to represent a substance
- 14. type of electromagnetic wave produced by the sun
- 15. Water dissolves everything what is it
- 16. the force that holds two atoms together
- 18. A substance produced in a chemical reaction
- 19. States that atoms lose, gain or share electrons in order to acquire a full set of eight valence electrons
- 21. the highest frequency waves on the electromagnetic spectrum
- 23. A compound that consists of positive and negative ions
- 26. The condition of an atom is expressed by the number of electrons that the atom needs to reach its elemental form
- 27. A solution that had a great amount of solute
- 29. That portion of the electromagnetic spectrum detected as various colors by the human eye, ranging in wavelength from about 380 nm to about 750 nm.
Down
- 1. Matter is not created nor destroyed in any chemical or physical change
- 2. Formed when one or more electrons are transferred from one atom to another
- 3. Electrons on the outermost energy level of an atom
- 4. A chemical bond formed when two atoms share valence electrons
- 5. A chemical substance that is present at the start of a chemical reaction
- 6. Spectrum All of the frequencies or wavelengths of electromagnetic radiation
- 9. A graphical representation of how much solute will dissolve in water at various temperatures
- 10. the bouncing back of a ray of light, sound, or heat when the ray hits a surface that it does not go through
- 11. shorter than radio waves - used for cooking and communication
- 13. A solution that contains a small amount of solute
- 17. higher frequency than uv rays but lower than gamma rays
- 20. The amount of energy required to remove an electron from an atom
- 22. the lowest temperature that is theoretically possible
- 24. An atom or group of atoms that has a positive or negative charge.
- 25. the transfer of energy by electromagnetic waves
- 28. the property of a body that is a measure of its inertia